Compass surveying
... Dip of the magnetic needle: If the needle is perfectly balanced before magnetisation, it does not remain in the balanced position after it is magnetised. This is due to the magnetic influence of the earth. The needle is found to be inclined towards the pole. This inclination of the needle with the h ...
... Dip of the magnetic needle: If the needle is perfectly balanced before magnetisation, it does not remain in the balanced position after it is magnetised. This is due to the magnetic influence of the earth. The needle is found to be inclined towards the pole. This inclination of the needle with the h ...
KV No. 1 (Paper-I)
... radiation incident on a metal plate. How can the value of Planck’s constant be determined from this graph? 15. Indentify the logic gate ‘1’ and ‘2’ in the logic circuit given. Also obtain the truth table for the final output for all possible combination of the input A and B. ...
... radiation incident on a metal plate. How can the value of Planck’s constant be determined from this graph? 15. Indentify the logic gate ‘1’ and ‘2’ in the logic circuit given. Also obtain the truth table for the final output for all possible combination of the input A and B. ...
Analog indicators
... Moving-iron meters indicate rms-values practically independent of wave form even of high harmonics. Error of indication may occur for extreme wave forms (e.g. phase gating controls) and / or frequencies above 100 Hz. These meters are not suitable for use with shunts or tachogenerators due to their h ...
... Moving-iron meters indicate rms-values practically independent of wave form even of high harmonics. Error of indication may occur for extreme wave forms (e.g. phase gating controls) and / or frequencies above 100 Hz. These meters are not suitable for use with shunts or tachogenerators due to their h ...
lec27
... I have to go to a lot of effort to explain magnetic field and force direction when I teach the non-calculus course. It’s so much easier with calculus and vectors. The force on a charge q moving with a velocity v in a magnetic field B is found to obey F = qv B. The magnitude of the cross product i ...
... I have to go to a lot of effort to explain magnetic field and force direction when I teach the non-calculus course. It’s so much easier with calculus and vectors. The force on a charge q moving with a velocity v in a magnetic field B is found to obey F = qv B. The magnitude of the cross product i ...
Circuit Analysis in the Presence of Time
... the connecting wires is zero. Thus, the voltage on voltmeter #1 does not change. Similarly, sliding the contact from F to E does not change the voltage on voltmeter #1. The same applies to voltmeter #2: sliding the contact from B to A or from E to F does not change the reading. Note that the voltme ...
... the connecting wires is zero. Thus, the voltage on voltmeter #1 does not change. Similarly, sliding the contact from F to E does not change the voltage on voltmeter #1. The same applies to voltmeter #2: sliding the contact from B to A or from E to F does not change the reading. Note that the voltme ...
Electrical characteristics - Teaching Advanced Physics
... This activity is best carried out individually (if space and apparatus allows this) so that each student has to construct and test his/her own circuit. One of the dangers of always working in pairs is that some students who lack confidence in circuit building will always avoid having to do it. This ...
... This activity is best carried out individually (if space and apparatus allows this) so that each student has to construct and test his/her own circuit. One of the dangers of always working in pairs is that some students who lack confidence in circuit building will always avoid having to do it. This ...
Lecture Magnetic Circuit
... placed in the flux paths surrounding a permanent magnet, an almost unnoticeable change occurs in the flux distribution if a magnetic material, such as soft iron, is placed in the flux path, the flux lines pass through the soft iron rather than the surrounding air because flux lines pass with greate ...
... placed in the flux paths surrounding a permanent magnet, an almost unnoticeable change occurs in the flux distribution if a magnetic material, such as soft iron, is placed in the flux path, the flux lines pass through the soft iron rather than the surrounding air because flux lines pass with greate ...
T11 Q5-9
... The current in the circuit is found to be 2.0 A. (i) Use Fig. 2.1 to determine the pd across component X. (ii) Determine 1. the p.d. across R, 2. the emf of the battery. (c) The resistor R and the component X are now connected in parallel with the battery, as shown in Fig. 2.3. ...
... The current in the circuit is found to be 2.0 A. (i) Use Fig. 2.1 to determine the pd across component X. (ii) Determine 1. the p.d. across R, 2. the emf of the battery. (c) The resistor R and the component X are now connected in parallel with the battery, as shown in Fig. 2.3. ...
The Physical Entity of Vector Potential in Electromagnetism
... The transformer is a simple device to set up. It could hardly be less sophisticated, without the need of moving parts, permanent magnets, sliding contacts, vacuum tubes etc. Despite the simplicity of such a device, the theory of its operation has raised fundamental questions regarding the very found ...
... The transformer is a simple device to set up. It could hardly be less sophisticated, without the need of moving parts, permanent magnets, sliding contacts, vacuum tubes etc. Despite the simplicity of such a device, the theory of its operation has raised fundamental questions regarding the very found ...
Electric Current Part I
... • Electric current will flow continually in a CLOSED path called an electrical circuit ...
... • Electric current will flow continually in a CLOSED path called an electrical circuit ...
Module 4, Lecture 4: Electric Current and Resistance Electric
... A typical circuit breaker will be tripped if more than 20 amps pass through it. For a 120 V circuit, determine the minimum resistance to keep the circuit breaker from tripping. ...
... A typical circuit breaker will be tripped if more than 20 amps pass through it. For a 120 V circuit, determine the minimum resistance to keep the circuit breaker from tripping. ...
Word document - FacStaff Home Page for CBU
... (a) What is the charge on one of the ionized molecules? (sign and size) (b) Should plate 1 be at a higher or lower voltage than plate 2? Why? (c) What size electric field is needed in the selector to select speeds of 105 m/s? (d) What direction should the electric field have in the selector? Why? (e ...
... (a) What is the charge on one of the ionized molecules? (sign and size) (b) Should plate 1 be at a higher or lower voltage than plate 2? Why? (c) What size electric field is needed in the selector to select speeds of 105 m/s? (d) What direction should the electric field have in the selector? Why? (e ...
Lecture Set 6-Current and Resistance
... We will assume that the conductor is essentially an equi-potential ...
... We will assume that the conductor is essentially an equi-potential ...
A coil magnetic levitation simulator for physics exploration
... all contained in visual basic routines. Many cells in the circuit are matrix and vector cells which are unlike normal excel cells. You should use caution in modifying stuff in the “circuit” sheet are unless you know what you are doing. 2) Important things on the “main” sheet used in the goal seek ha ...
... all contained in visual basic routines. Many cells in the circuit are matrix and vector cells which are unlike normal excel cells. You should use caution in modifying stuff in the “circuit” sheet are unless you know what you are doing. 2) Important things on the “main” sheet used in the goal seek ha ...
Time varying fields and Maxwell`s equations Introduction: In our
... (a) time changing flux linkage a stationary closed path. (b) relative motion between a steady flux a closed path. (c) a combination of the above two cases. The negative sign in equation (5.3) was introduced by Lenz in order to comply with the polarity of the induced emf. The negative sign implies th ...
... (a) time changing flux linkage a stationary closed path. (b) relative motion between a steady flux a closed path. (c) a combination of the above two cases. The negative sign in equation (5.3) was introduced by Lenz in order to comply with the polarity of the induced emf. The negative sign implies th ...
4 pole DC contactors for battery voltages, CS115/10
... degree of pollution etc. that are relevant to your application. ●● Without further safety measures the CS Series contactors are not suited for use in potentially explosive atmospheres. ●● In case of malfunction of the device or uncertainties stop using it any longer and contact the manufacturer inst ...
... degree of pollution etc. that are relevant to your application. ●● Without further safety measures the CS Series contactors are not suited for use in potentially explosive atmospheres. ●● In case of malfunction of the device or uncertainties stop using it any longer and contact the manufacturer inst ...
Taking precise measurements - Micro
... the opposing target. If an AC current with constant frequency flows through the sensor capacitor, the amplitude of the AC voltage on the sensor is proportional to the distance between the capacitor electrodes. An adjustable compensating voltage is simultaneously generated in the amplifier electronic ...
... the opposing target. If an AC current with constant frequency flows through the sensor capacitor, the amplitude of the AC voltage on the sensor is proportional to the distance between the capacitor electrodes. An adjustable compensating voltage is simultaneously generated in the amplifier electronic ...
Galvanometer
A galvanometer is a type of sensitive ammeter: an instrument for detecting electric current. It is an analog electromechanical actuator that produces a rotary deflection of some type of pointer in response to electric current through its coil in a magnetic field.Galvanometers were the first instruments used to detect and measure electric currents. Sensitive galvanometers were used to detect signals from long submarine cables, and to discover the electrical activity of the heart and brain. Some galvanometers use a solid pointer on a scale to show measurements; other very sensitive types use a miniature mirror and a beam of light to provide mechanical amplification of low-level signals. Initially a laboratory instrument relying on the Earth's own magnetic field to provide restoring force for the pointer, galvanometers were developed into compact, rugged, sensitive portable instruments essential to the development of electrotechnology. A type of galvanometer that records measurements permanently is the chart recorder. The term has expanded to include use of the same mechanism in recording, positioning, and servomechanism equipment.