Advertisements
Advertisements
प्रश्न
State the relation between work, charge and potential difference for an electric circuit.
Advertisements
उत्तर
The relation between work (W), charge (Q) and potential difference (V):
The work required to be done (W) to move a positive charge Q, between two points in a circuit having potential difference V, is QV. That is,
W = QV
APPEARS IN
संबंधित प्रश्न
If 20 C of charge pass a point in a circuit in 1 s, what current is flowing?
What happens to the other bulbs in a series circuit if one bulb blows off?
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.
(b) In which circuit, if one bulbs be brighter?
For a heater rated at 4 kW and 220 V, calculate:
(a) the current,
(b) the resistance of the heater,
(c) the energy consumed in 2 hours, and
(d) the cost if 1 kWh is priced at Rs 4.60.
Find the potential difference required to pass a current of 0.2 A in a wire of resistance 20Ω
A given wire of resistance 1 Ω is stretched to double its length. What will be its new resistance?
An electric current flowing in a wire creates ______ around the wire.
An electric bulb is marked 100 W, 250 V. How much current will the bulb draw if connected to a 250 V supply?
Small amounts of electrical current are measured in milliampere (mA). How many milliampere are there in 0.25 A ?
