Modern's ABC+ Of Science Physics>Chapter 1 - Electricity>Practice Exercise 1A>Q 9

EASY

10th CBSE

IMPORTANT

Earn 100

Draw the electric symbol of variable resistance.

Important Questions on Electricity

EASY

10th CBSE

IMPORTANT

Modern's ABC+ Of Science Physics>Chapter 1 - Electricity>Practice Exercise 1A>Q 9

Draw the following electric symbol:
Electric bulb

HARD

10th CBSE

IMPORTANT

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

State Ohm's law. Suggest an activity to demonstrate ohm's law by drawing a circuit diagram. Draw a graph of

V

versus

I

.

MEDIUM

10th CBSE

IMPORTANT

Modern's ABC+ Of Science Physics>Chapter 1 - Electricity>Practice Exercise 1B>Q 2

On what factors does resistance depend? Explain.

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10th CBSE

IMPORTANT

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

For three resistors connected in series, prove that the equivalent resistance is equal to the sum of the individual resistances.

MEDIUM

10th CBSE

IMPORTANT

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

For Three resistors connected in parallel, prove that the equivalent resistance

R_{p}

is given by

\frac{1}{R_{P}} = \frac{1}{R_{1}} + \frac{1}{R_{2}} + \frac{1}{R_{3}}

EASY

10th CBSE

IMPORTANT

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

Find the equivalent resistance of three resistors of $2 Ω, 3 Ω, 4 Ω$ when connected in parallel in ohms.

(Write only magnitude of the answer up-to two decimals without any units in the given box)

EASY

10th CBSE

IMPORTANT

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

Calculate the effective resistance (in ohms) between A and B.

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MEDIUM

10th CBSE

IMPORTANT

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

Calculate the effective resistance between A and B. Also find the reading of ammeter and voltmeter.

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