EASY
10th CBSE
IMPORTANT
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A continuous conducting path between the terminals of a source of electricity (such as a cell, a battery or ammeter) is called—

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Important Questions on Electricity

MEDIUM
10th CBSE
IMPORTANT
SCIENCE [PHYSICS] Class-10>Chapter 1 - Electricity>Numericals for Practice>Q 1
Two lamps rated 100 W at 220 V and 40 W at 220 V are connected parallel to 220 V mains supply. Calculate the current drawn from the supply line.
MEDIUM
10th CBSE
IMPORTANT
SCIENCE [PHYSICS] Class-10>Chapter 1 - Electricity>Numericals for Practice>Q 2

A current of 3 A flows through a 12 V car headlight bulb for 10 minutes. How much energy transfer occurs during this time?

MEDIUM
10th CBSE
IMPORTANT
SCIENCE [PHYSICS] Class-10>Chapter 1 - Electricity>Numericals for Practice>Q 3
Number of electric lamps designed to be used on a 220 V electric supply are rated 10 W each. Calculate the number of lamps that can be connected in parallel to each other across the two wires of 220 V line, if maximum allowable current is 5 A.
HARD
10th CBSE
IMPORTANT
SCIENCE [PHYSICS] Class-10>Chapter 1 - Electricity>Numericals for Practice>Q 4
Calculate the amount of heat produced in an electric heater of resistance 1200 ohm if 6 ampere current is passed through it for 20minutes.
MEDIUM
10th CBSE
IMPORTANT
SCIENCE [PHYSICS] Class-10>Chapter 1 - Electricity>Numericals for Practice>Q 5
In a house four 60 W electric bulbs are lighted for 2 hours and two 100 W bulbs are lighted for 4 hour everyday. Calculate the energy consumed in the house for 30 days.
MEDIUM
10th CBSE
IMPORTANT
SCIENCE [PHYSICS] Class-10>Chapter 1 - Electricity>Numericals for Practice>Q 6

An electric bulb draws a current of 0.8 A and works on 250 V on the average 8 hours a day. If energy costs Rs. 3 per kWh, calculate monthly bill for 30 days.

EASY
10th CBSE
IMPORTANT
SCIENCE [PHYSICS] Class-10>Chapter 1 - Electricity>Numericals for Practice>Q 7

How should the two resistance of  2 ohms be connected so as to produce equivalent resistance of 1 ohm?

MEDIUM
10th CBSE
IMPORTANT
SCIENCE [PHYSICS] Class-10>Chapter 1 - Electricity>Numericals for Practice>Q 8
In a domestic circuit five 40 W bulbs are used for 3 hours and one 100 W bulb is used for  1 hour daily. There are three TV sets each of 50 W and they are used 10 hours daily. Calculate the energy consumed in a month. Also find the total cost when the charge of one unit energy is ₹ 3.50.