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Definition
the amount of charge that moves past a pount per unit time
i=dQ/dt |
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Term
| The current is "0" in a conductor when no potiential difference is applied becasue |
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Definition
| for every electron with a given velocity there is another with a velocity of equal magnitude and opp direction |
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Term
if the potiential difference across a resistor is doubled
ΔV=iR |
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Definition
| then only the current is doubled |
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Term
| a current of .05 ampere exsist in a 60-ohm lamp. the applied potiential difference is: |
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Definition
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Term
| Four 20Ω resistors are connected in parallel and the combination is connected to a 20-V emf device. the current in the device is: |
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Definition
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Term
| A battery with an emf of 12V and an internal resistance of 1 Ω is used to charge a battery with an emf of 10V and an internal resistance of 1Ω. The current in the circuit is: |
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Definition
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Term
| A 120-V power line is proected by a 15-A fuse. what is the maximum number of 120V, 500W light bulbs than can be operated at full brightness from this line? |
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Definition
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Term
| A 2Ω resistor and a 4Ω resistor are connected in parallel at a 6V battery. The rate of energy dissipated by the 2Ω resistor is: |
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Definition
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