Advertisements
Advertisements
प्रश्न
Find the potential difference required to pass a current of 0.2 A in a wire of resistance 20Ω
उत्तर
Current (I) = 0.2 A
Resistance (R) = 20 ohm
Potential Difference (V) = ?
According to Ohm's Law :
V = IR
V = 0.2 × 20 = 4 V
APPEARS IN
संबंधित प्रश्न
If 20 C of charge pass a point in a circuit in 1 s, what current is flowing?
Write down the formula which relates electric charge, time and electric current
In the circuit shown below, the voltmeter reads 10 V.
(a) What is the combined resistance?
(b) What current flows?
(c) What is the p.d. across 2 Ω resistor?
(d) What is the p.d. across 3 Ω resistor?
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.
(c) In which circuit, if one bulb blows out, all other will stop glowing?
If a charge of 420 C flows through a conducting wire in 5 minutes what is the value of the current?
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 total energy supplied by the battery in 10 minutes
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 energy dissipated in the bulb in 10 minutes.
Choose the correct option from given alternative:
At the time of short circuit, the electric current in the circuit :
Coulomb is the SI unit of ____________.
