Four resistances 1 Ω , 2 Ω , 3 Ω and 4 Ω are connected in a series with a battery of 12 volts as shown in figure. Calculate the potential difference across the ends of each resistance.

Potential difference = Current × Resistance V = IR V across 1 Ω = 1 . 2 × 1 = 1 . 2 V V across 2 Ω = 1 . 2 × 2 = 2 . 4 V V across 3 Ω = 1 . 2 × 3 = 3 . 6 V V across 4 Ω = 1 . 2 × 4 = 4 . 8 V

E M B I B E

New Millennium Science Super Simplified Physics CLASS X>Chapter 3 - Electricity>UNSOLVED NUMERICALS FOR PRACTICE>Q 4

MEDIUM

10th CBSE

IMPORTANT

Earn 100

Calculate the resistance of an aluminium wire of length $60 cm$ and cross-sectional area $1 {mm}^{2}$ The specific resistance of aluminium is $2.6 \times 10^{- 8} Ω - m$ .

Important Questions on Electricity

MEDIUM

10th CBSE

IMPORTANT

New Millennium Science Super Simplified Physics CLASS X>Chapter 3 - Electricity>UNSOLVED NUMERICALS FOR PRACTICE>Q 5

Resistance of a conductor of length

1 m

and cross-sectional area of

1 {mm}^{2}

is

8 Ω

. Find the specific resistance of the conductor.

EASY

10th CBSE

IMPORTANT

New Millennium Science Super Simplified Physics CLASS X>Chapter 3 - Electricity>UNSOLVED NUMERICALS FOR PRACTICE>Q 6

When a potential difference of

1.2

volt is applied across a conductor, the current flowing in it is

0.25

ampere. Calculate the resistance of the conductor.

EASY

10th CBSE

IMPORTANT

New Millennium Science Super Simplified Physics CLASS X>Chapter 3 - Electricity>UNSOLVED NUMERICALS FOR PRACTICE>Q 1

An electric lamp of resistance

100 ohms

draws a current of

0.5 A

. Find the line voltage.

EASY

10th CBSE

IMPORTANT

New Millennium Science Super Simplified Physics CLASS X>Chapter 3 - Electricity>UNSOLVED NUMERICALS FOR PRACTICE>Q 2

Four resistances $1 Ω, 2 Ω, 3 Ω$ and $4 Ω$ are connected in a series with a battery of $12$ volts as shown in figure.

Question Image

Calculate the current given by battery.

EASY

10th CBSE

IMPORTANT

New Millennium Science Super Simplified Physics CLASS X>Chapter 3 - Electricity>UNSOLVED NUMERICALS FOR PRACTICE>Q 2

Four resistances $1 Ω, 2 Ω, 3 Ω$ and $4 Ω$ are connected in a series with a battery of $12$ volts as shown in figure.

Question Image

Calculate the potential difference across the ends of each resistance.

EASY

10th CBSE

IMPORTANT

New Millennium Science Super Simplified Physics CLASS X>Chapter 3 - Electricity>UNSOLVED NUMERICALS FOR PRACTICE>Q 3

Three resistance of

2 Ω, 3 Ω

and

6 Ω

are connected (i) in series (ii) in parallel. Calculate the ratio of effective resistance of series and parallel combination of resistances.

MEDIUM

10th CBSE

IMPORTANT

New Millennium Science Super Simplified Physics CLASS X>Chapter 3 - Electricity>UNSOLVED NUMERICALS FOR PRACTICE>Q 4

A wire of resistance

R

is cut into three equal parts. If these equal parts are connected in parallel, find the resistance of the combination.

MEDIUM

10th CBSE

IMPORTANT

New Millennium Science Super Simplified Physics CLASS X>Chapter 3 - Electricity>UNSOLVED NUMERICALS FOR PRACTICE>Q 5

Three resistors are connected in an electrical circuit as shown. Calculate the resistance between $A$ and $B$ .

Question Image

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Calculate the resistance of an aluminium wire of length 60 cm and cross-sectional area 1 mm2 The specific resistance of aluminium is 2.6×10-8 Ω-m.

Important Questions on Electricity

Learn and Prepare for any exam you want !

Calculate the resistance of an aluminium wire of length $60 cm$ and cross-sectional area $1 {mm}^{2}$ The specific resistance of aluminium is $2.6 \times 10^{- 8} Ω - m$ .