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प्रश्न
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उत्तर
We know that, P =VI
I = `"P"/"V" = 40/220` = 0.11 A
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संबंधित प्रश्न
The figure given below shows an electric circuit in which current flows from a 6 V battery through two resistors.
- Are the resistors connected in series with each other or in parallel?
- For each resistors, state the p.d. across it.
- The current flowing from the battery is shared between the two resistors. Which resistor will have bigger share of the current?
- Calculate the effective resistance of the two resistors.
- Calculate the current that flows from the battery.
Ten bulbs are connected in a series circuit to a power supply line. Ten identical bulbs are connected in a parallel circuit to an identical power supply line.
(d) Which circuit would have less current in it?
Define the following:
Electromotive force
A bulb is connected to a battery of p.d. 4 V and internal resistance 2.5 Ω . A steady current of 0.5 A flows through the circuit. Calculate:
The resistance of the bulb
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- Name and define its unit.
- Which instrument is used to measure the electric current? How should it be connected in a circuit?
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A current of 2A passing through the conductor produces 80 J of heat in 10 seconds. The resistance of the conductor is ______.
A charge of 400C flows through a conductor for 13 minutes and 20 seconds. Find the magnitude of the current flowing through the conductor.
