Advertisements
Advertisements
प्रश्न
Write an expression for the electrical power spent in flow of current through a conductor in terms of resistance and potential difference.
Advertisements
उत्तर
Electrical Power , P = `"V"^2/"R"`
APPEARS IN
संबंधित प्रश्न
How much work is done when one coulomb charge moves against a potential difference of 1 volt?
If a potential difference of 10 V causes a current of 2 A to flow for 1 minute, how much energy is transferred?
Write down the formula which states the relation between potential difference, current, and resistance.
In the circuit shown below:
The potential difference across the 3 Ω resistor is:
Calculate the power used in the 2 Ω resistor in each of the following circuits: a 6 V battery in series with 1 Ω and 2 Ω resistors.
Calculate the potential difference between the two terminals of a battery if 100 joules of work is required to transfer 20 coulombs of charge from one terminal of the battery to the other.
Five resistors of different resistances are connected together as shown in the figure. A 12 V battery is connected to the arrangement.
Calculate:
(i) the total resistance in the circuit
(ii) the total current flowing in the circuit.
An electric bulb draws 0.5 A current at 3.0 V. Calculate the resistance of the filament of the bulb.
Potential near a charge is the measure of its ______ to bring a positive charge at that point.
Inside a hollow charged spherical conductor, the potential ______
