past paper questions electrical circuits
... (ii) During his investigations the student measures the voltage across the lamp as 3.0V and the current passing through the lamp as 0.3A. Calculate the resistance of the lamp. State the formula that you use and show your working. formula used ...
... (ii) During his investigations the student measures the voltage across the lamp as 3.0V and the current passing through the lamp as 0.3A. Calculate the resistance of the lamp. State the formula that you use and show your working. formula used ...
A-level Paper 1 Practice Paper 8 - A
... The frequency, v, of light absorbed by a transition metal complex ion can be determined using the relationship ΔE = hv. State what is meant by the symbols ΔE and h. Give three factors which result in a change in the frequency of light absorbed as a result of the reaction of a complex ion. ...
... The frequency, v, of light absorbed by a transition metal complex ion can be determined using the relationship ΔE = hv. State what is meant by the symbols ΔE and h. Give three factors which result in a change in the frequency of light absorbed as a result of the reaction of a complex ion. ...
Optional Extra Credit Exercise
... 16. When two or more resistors ( of different resistances) are connected in series with a battery. A. the voltage drop across each resistor is the same B. the current through each resistor is the same C. the power dissipated by each resistor is the same D. all of the above E. none of the above My an ...
... 16. When two or more resistors ( of different resistances) are connected in series with a battery. A. the voltage drop across each resistor is the same B. the current through each resistor is the same C. the power dissipated by each resistor is the same D. all of the above E. none of the above My an ...
AP CHEMISTRY
... 2. Which of the following pairs of compounds have the same empirical formula? a. Acetylene, C2H2, and benzene, C6H6 b. Ethane, C2H6, and benzene, C6H6 c. Nitrogen dioxide, NO2 , and dinitrogen tetroxide, N2O4 3. D. Diphenyl ether, C12H8O, and phenol, C6H5OHIn an experiment, a 2.514-g sample of calci ...
... 2. Which of the following pairs of compounds have the same empirical formula? a. Acetylene, C2H2, and benzene, C6H6 b. Ethane, C2H6, and benzene, C6H6 c. Nitrogen dioxide, NO2 , and dinitrogen tetroxide, N2O4 3. D. Diphenyl ether, C12H8O, and phenol, C6H5OHIn an experiment, a 2.514-g sample of calci ...
12 electric current support
... charge passing through it, and so it is also measured in volts (V). The energy transferred (or dissipated), ΔE, in a component is equal to the work done, W and is measured in joules (J). ...
... charge passing through it, and so it is also measured in volts (V). The energy transferred (or dissipated), ΔE, in a component is equal to the work done, W and is measured in joules (J). ...
Solution Tutorial 1
... Electronic component made by semiconductor materials and can be used in a lot of applications because it’s compact, suitable in large electromagnet spectrum (from dc to UV frequency), its ability to conduct current and voltage in large value and can be integrated in IC. Important elements of electro ...
... Electronic component made by semiconductor materials and can be used in a lot of applications because it’s compact, suitable in large electromagnet spectrum (from dc to UV frequency), its ability to conduct current and voltage in large value and can be integrated in IC. Important elements of electro ...
Measuring Electricity
... pressure(voltage) in getting the electrons through the resistance of wires and machines back to the generator. ...
... pressure(voltage) in getting the electrons through the resistance of wires and machines back to the generator. ...
Chapter 8 Notes - Valdosta State University
... a device which is wired in series with the circuit it is protecting and consists of a conductor which will melt when its maximum current rating is reached. This acts like a switch that opens the circuit and the current cannot become large enough to damage the circuit. Fuses are used in automobiles, ...
... a device which is wired in series with the circuit it is protecting and consists of a conductor which will melt when its maximum current rating is reached. This acts like a switch that opens the circuit and the current cannot become large enough to damage the circuit. Fuses are used in automobiles, ...
DC Circuits - UCF Physics
... Power in DC Circuit In time t, a charge Q is pushed through the resistor by the battery. The amount of work done by the battery is : W VQ Power : ...
... Power in DC Circuit In time t, a charge Q is pushed through the resistor by the battery. The amount of work done by the battery is : W VQ Power : ...
Electric field
... 1. Tangential component of an external E-field causes a positive charge (+q) to move in the direction of the field. A negative charge (-q) moves in the opposite direction. 2. The movement of the surface charge compensates the tangential electric field of the external field on the surface, thus there ...
... 1. Tangential component of an external E-field causes a positive charge (+q) to move in the direction of the field. A negative charge (-q) moves in the opposite direction. 2. The movement of the surface charge compensates the tangential electric field of the external field on the surface, thus there ...
PHY481 - Lecture 8: Energy in a charge distribution, capacitance
... In the above we use the fact that the earth’s electric field reduces to about one half of its sea level value at an altitude of 2km. There are considerable variations from place to place on the earth’s surface and this is a rough average value, but good enough for an estimate correct to an order of ...
... In the above we use the fact that the earth’s electric field reduces to about one half of its sea level value at an altitude of 2km. There are considerable variations from place to place on the earth’s surface and this is a rough average value, but good enough for an estimate correct to an order of ...
Chapter 10 - Chemical Reactions
... However, you should be familiar with the rules which describe balanced chemical reactions. 1. Number of Atoms of each element conserved in reactants and products 2. Cannot change formula of reactants or products 3. Can only change coefficients to balance equation Hints to help in balancing equations ...
... However, you should be familiar with the rules which describe balanced chemical reactions. 1. Number of Atoms of each element conserved in reactants and products 2. Cannot change formula of reactants or products 3. Can only change coefficients to balance equation Hints to help in balancing equations ...
Nanofluidic circuitry
Nanofluidic circuitry is a nanotechnology aiming for control of fluids in nanometer scale. Due to the effect of an electrical double layer within the fluid channel, the behavior of nanofluid is observed to be significantly different compared with its microfluidic counterparts. Its typical characteristic dimensions fall within the range of 1–100 nm. At least one dimension of the structure is in nanoscopic scale. Phenomena of fluids in nano-scale structure are discovered to be of different properties in electrochemistry and fluid dynamics.