Modern's ABC+ Of Science Physics>Chapter 1 - Electricity>Practice Exercise 1C>Q 3

MEDIUM

10th CBSE

IMPORTANT

Earn 100

Write the formula for the amount of heat ( $H$ ) produced in a resistor ( $R$ ) when current ( $I$ ) flows through it for time ( $t$ ). Give three applications of heating effect of current.

Important Questions on Electricity

EASY

10th CBSE

IMPORTANT

Modern's ABC+ Of Science Physics>Chapter 1 - Electricity>Practice Exercise 1C>Q 4

Define power. Give its S.I. unit and define it.

EASY

10th CBSE

IMPORTANT

Modern's ABC+ Of Science Physics>Chapter 1 - Electricity>Practice Exercise 1C>Q 5

A current of

5 A

flows through a

12 Ω

resistor. What is the rate at which heat energy (in watt) is produced in the resistor?

MEDIUM

10th CBSE

IMPORTANT

Modern's ABC+ Of Science Physics>Chapter 1 - Electricity>Practice Exercise 1C>Q 6

An electric bulb is rated

220 V - 60 W

. Calculate its resistance. If four such bulbs are used for four hours what is the electrical energy consumed? Calculate the cost if the rate per unit is ₹

4.80

.

MEDIUM

10th CBSE

IMPORTANT

Modern's ABC+ Of Science Physics>Chapter 1 - Electricity>Practice Exercise 1C>Q 7

Two coils of resistances

5 Ω

and

10 Ω

are connected across a battery of emf

10 V

. Find the electrical energy consumed in

5

minutes by each coil when,
(a) these are connected in parallel
(b) these are connected in series.

MEDIUM

10th CBSE

IMPORTANT

Modern's ABC+ Of Science Physics>Chapter 1 - Electricity>Practice Exercise 1C>Q 8

In a household four undefined electric bulbs are lighted for

2

hours and two undefinedbulbs are lighted for

4

hours every day. Calculate the energy consumed in the house for undefinedday. Calculate the electricity bill if it is charged as ₹undefined

EASY

10th CBSE

IMPORTANT

Modern's ABC+ Of Science Physics>Chapter 1 - Electricity>PRACTICE QUESTIONS>Q 1

The following circuit diagram shows the experimental set-up for the study of the dependence of current on potential difference. Which two circuit components are connected in series?

Question Image

EASY

10th CBSE

IMPORTANT

Modern's ABC+ Of Science Physics>Chapter 1 - Electricity>PRACTICE QUESTIONS>Q 2

In a voltmeter, there are

20

division between the

0

mark and

0.5 V

mark. The least count of the voltmeter is

EASY

10th CBSE

IMPORTANT

Modern's ABC+ Of Science Physics>Chapter 1 - Electricity>PRACTICE QUESTIONS>Q 3

For the circuits shown in the below figure I and II, the voltmeter reading would be

Question Image