WORKSHEET #2
Electricity
Date : 05/12/23
1) Calculate the power consumed by a device that operates at a voltage of 120V and
draws a current of 5A.
2) An electric iron operates at a power of 1000W. If it is used for 2 hours daily,
calculate the energy consumed in a month (considering 30 days).
3) A current of 2A passes through a resistor of resistance 10Ω for 5 minutes. Calculate
the heat produced in the resistor.
4) Calculate the power consumed by an electrical appliance with a resistance of 20Ω,
through which a current of 5A is passing.
5) A device has a power consumption of 500W and operates at a voltage of 100V.
Find the current passing through the device.
6) An electric bulb operates at 120V and draws a current of 0.5A. Determine the
power consumed by the bulb.
7) Calculate the total charge on 6.25 × 10^18 electrons.
8) If a charge of 20C flows through a conductor in 5 seconds, calculate the electric
current.
9) Determine the potential difference across a resistor that has a current of 2A
passing through it and a resistance of 10Ω.
10) In a series circuit, three resistors of values 5Ω, 8Ω, and 10Ω are connected.
Calculate the total resistance in the circuit.
11) Three resistors of values 6Ω, 9Ω, and 12Ω are connected in parallel. Find the
equivalent resistance of the combination.
12) In a circuit, two resistors of values 4Ω and 6Ω are connected in series, and this
combination is connected in parallel to a resistor of value 10Ω. Calculate the total
resistance of the circuit.