Electrical Power | MCQs

Explanation

The basic unit of electricity is the Kilowatt hour . In simple terms, 1 kWh is the amount of energy used by a 1kW (1000 watt) electric heater for 1 hour.

Explanation

The power (P) is given by:

P = VI

Given P = 100 W and V = 200 V, we can find the current (I):

100 = 200 × I

I = 100 / 200

= 0.5 A

Explanation

Answer:

A

The feature of the dynamo is to alternate mechanical strength into electricity. The managed equipment related to the dynamo regulates the modern output in step with the needs of the electrical device and the country of the battery.

Explanation

Volt x Ampere is the measure of power.

Specifically, it represents electrical power in watts (W), where power (P) is calculated using the formula 

P=V×I, with V being voltage and I being current.