MECH307 EXAM I (Example Questions)
... If the voltage at the emitter of an npn bipolar transistor is 5 V and the transistor is in saturation, the voltage at the collector is approximately (a) 5.0 V (b) 5.2 V (c) 5.7 V (d) 4.8 V (e) 4.3 V ...
... If the voltage at the emitter of an npn bipolar transistor is 5 V and the transistor is in saturation, the voltage at the collector is approximately (a) 5.0 V (b) 5.2 V (c) 5.7 V (d) 4.8 V (e) 4.3 V ...
Unit 2
... 2. A parallel circuit has two resistors, one is 2 Ω the other is 3Ω what is the total resistance of the circuit? 3. Three resistors are in parallel (three seperate branches) their resitances are 2Ω,2Ω and 1 Ω what is the resistance of the circuit? ...
... 2. A parallel circuit has two resistors, one is 2 Ω the other is 3Ω what is the total resistance of the circuit? 3. Three resistors are in parallel (three seperate branches) their resitances are 2Ω,2Ω and 1 Ω what is the resistance of the circuit? ...
Automatic Street Light
... This circuit uses a popular timer I.C LM 358. I.C LM358 is connected as comparator with pin-6 connected with positive rail, the output goes high(1) when the trigger pin 3 is at lower then voltage level at pin no 2. Conversely the output goes low (0) when it is above pin no 2 level. So small change i ...
... This circuit uses a popular timer I.C LM 358. I.C LM358 is connected as comparator with pin-6 connected with positive rail, the output goes high(1) when the trigger pin 3 is at lower then voltage level at pin no 2. Conversely the output goes low (0) when it is above pin no 2 level. So small change i ...
Electric Current, Resistance and Ohm`s Law
... electrical resistance causes a loss of electric potential (voltage). There is a “difference” in the amount of electric potential after the electrons have flowed through the conductor. Physicists refer to this loss as electric potential difference, or more simply, potential difference. ...
... electrical resistance causes a loss of electric potential (voltage). There is a “difference” in the amount of electric potential after the electrons have flowed through the conductor. Physicists refer to this loss as electric potential difference, or more simply, potential difference. ...
CP PHYSICS
... 6. Plug the battery’s voltage and the current into Ohm’s Law to calculate the total Resistance. 7. Rebuild the series circuit with the ammeter in-between the two resistors. Record the current here. ______ 8. This is called a series circuit. Resistors in series like this have a common amount of curre ...
... 6. Plug the battery’s voltage and the current into Ohm’s Law to calculate the total Resistance. 7. Rebuild the series circuit with the ammeter in-between the two resistors. Record the current here. ______ 8. This is called a series circuit. Resistors in series like this have a common amount of curre ...
electrical current - Fulton County Schools
... • Electrons are negative, so the electrons move from a negative pole towards a positive pole. • Electricity can be described as the forces between charges. ...
... • Electrons are negative, so the electrons move from a negative pole towards a positive pole. • Electricity can be described as the forces between charges. ...
Ohm`s Law I: Engineering Physics II
... Equipment: 560, 680, ohm (or similar) resistors, assorted connectors, ...
... Equipment: 560, 680, ohm (or similar) resistors, assorted connectors, ...
Batteries are made of conducting material and thus have resistance
... lights in your house do not get brighter or dimmer. If one light goes out the others remain lit. ...
... lights in your house do not get brighter or dimmer. If one light goes out the others remain lit. ...
Lecture 5 - Physics at PMB
... where is a proportionality constant known as the resistivity of a material. Resistivity is an intrinsic property that quantifies how strongly a given material opposes the flow of electric current. For most metals (good conductors) at room temperature 10 Ω and for insulators (bad conductors) 10 Ω . ...
... where is a proportionality constant known as the resistivity of a material. Resistivity is an intrinsic property that quantifies how strongly a given material opposes the flow of electric current. For most metals (good conductors) at room temperature 10 Ω and for insulators (bad conductors) 10 Ω . ...
Name ______ period ____
... What type of current is produced by the plug in the wall? ______alternating current or AC______ 24. There is a potential difference of 15 V across a resistor with 1.4 A of current in it. What is the resistance of the resistor? V = I x R or R = V / I so 15V / 1.4 A = 10.71Ω 25. An electrical conducto ...
... What type of current is produced by the plug in the wall? ______alternating current or AC______ 24. There is a potential difference of 15 V across a resistor with 1.4 A of current in it. What is the resistance of the resistor? V = I x R or R = V / I so 15V / 1.4 A = 10.71Ω 25. An electrical conducto ...
Lab # 3 Series Circuits
... Turn the switch ON and unhook the ground. Measure changes in amps and volts. Leave the switch ON and hook the ground back up, disconnect connector C and measure changes in amps and volts. How can you use a voltmeter to locate an open (defective) ground or connection? ...
... Turn the switch ON and unhook the ground. Measure changes in amps and volts. Leave the switch ON and hook the ground back up, disconnect connector C and measure changes in amps and volts. How can you use a voltmeter to locate an open (defective) ground or connection? ...
Chapter 27
... is connected in parallel across the capacitor C of an RC-circuit. There is a current through the lamp only when the potential difference across it reaches the breakdown voltage VL; then the capacitor discharges completely through the lamp and the lamp flashes briefly. For a lamp with breakdown volta ...
... is connected in parallel across the capacitor C of an RC-circuit. There is a current through the lamp only when the potential difference across it reaches the breakdown voltage VL; then the capacitor discharges completely through the lamp and the lamp flashes briefly. For a lamp with breakdown volta ...
SUMMARY EXERCISE 1. Explain what electrical quantity each of
... Each household bulb is designed to operate in a circuit with the same voltage, 120 volts. So the ∆V is the same for both. The one with the highest power rating must have the greatest current flowing through it: P = ∆V • I for the 60-watt bulb ...
... Each household bulb is designed to operate in a circuit with the same voltage, 120 volts. So the ∆V is the same for both. The one with the highest power rating must have the greatest current flowing through it: P = ∆V • I for the 60-watt bulb ...