CBSE - Electricity

What is the measuring equipment called that measures the electric current passing through conductors? (1) Wattmeter (2) Ammeter (3) Galvanometer (4) Voltmeter

A certain household has consumed 200 units of energy during a month. Its value in joules will be - (1) 3.6 × 10 10 (2) 7.2 × 10 10 (3) 3.6 × 10 8 (4) 7.2 × 10 8

The value of equivalent resistance between the points A and B in the given circuit, will be – (1) 6R (2) 4R/11 (3) 11R/4 (4) R/6

If current through a resistance is increased by 100% simultaneously reducing resistance value to 25%, the new power dissipated will be (1) No change (2) Increased by 100% (3) Decreased by 400% (4) Increased by 400%

What is the resistance between the points A and B ? 1) 3/2 Ω 2) 2/3 Ω 3) 1/2 Ω 4) 2 Ω