if you want to remove an article from website contact us from top.

# an electric current is passed through a circuit containing two wires

Category :

### Mohammed

Guys, does anyone know the answer?

get an electric current is passed through a circuit containing two wires from screen.

## An electric current is passed through a circuit containing two wires of the same material connected in parallel. If the lengths and radii of the wires are in the ratio of 4/3 and 2/3 respectively, then the ratio of the currents passing through the wires will be

An electric current is passed through a circuit containing two wires of the same material connected in parallel. If the lengths and radii of the wires are in the ratio of 4/3 and 2/3 respectively, then the ratio of the currents passing through the wires will be

Partially Filled Dielectrics

An electric c... Question

An electric current is passed through a circuit containing two wires of the same material connected in parallel. If the lengths and radii of the wires are in the ratio of

4 / 3 and 2 / 3

respectively, then the ratio of the currents passing through the wires will be -

A 1 / 3 B 1 / 5 C 8 / 9 D 2 Open in App Solution

The correct option is A

1 / 3

Since wires are connected in parallel, the potential difference across the wires will be the same.

I 1 = V R 1 and I 2 = V R 2 ⇒ I 1 I 2 = R 2 R 1 Here, R 1 = ρ l 1 A 1 = ρ l 1 π r 2 1 , and R 2 = ρ l 2 π r 2 2 ⇒ I 1 I 2 = ρ l 2 π r 2 2 ρ l 1 π r 2 1 = l 2 r 2 1 l 1 r 2 2 ⇒ I 1 I 2 = 3 4 × ( 2 3 ) 2 = 1 3 Hence, option ( A )

Suggest Corrections 3

SIMILAR QUESTIONS

Q. An electric current is passed through a circuit containing two wires of the same material connected in parallel. If the lengths and radii of the wires are in the ratio of

4 / 3 and 2 / 3

respectively, then the ratio of the currents passing through the wires will be -

Q. The same mass of copper is drawn into wires

2 m m and 3 m m

thick. The wires are connected in series and current is passed through them. The ratio of heats produced in two wires is

Q. Two wires of same material having lengths and radii in the ratio of

3 : 4 and 3 : 2

respectively are connected in parallel with a potential source of

6 V

. The ratio of currents flowing through them,

I 1 : I 2 = _________.

स्रोत : byjus.com

## An electric current is passed through a circuit containing two wires of the same material, connected in parallel. If the lengths and radii of the wires are in the ratio of 4/3 and 2/3 , then the ratio of the currents passing through the wire will be

Click here👆to get an answer to your question ✍️ An electric current is passed through a circuit containing two wires of the same material, connected in parallel. If the lengths and radii of the wires are in the ratio of 4/3 and 2/3 , then the ratio of the currents passing through the wire will be

Question

A

B

3 1 ​

C

9 8 ​

D

## 2

Medium Open in App

Updated on : 2022-09-05

Solution Verified by Toppr

Correct option is B)

R=ρ

A l ​ ⟹R=ρ πr 2 l ​ ⟹R∝ r 2 l ​ Hence, R R ′ ​ = r ′2 l ′ ​ l r 2 ​ R R ′ ​ = l l ′ ​ (r ′ ) 2 r 2 ​ ⟹ R R ′ ​ = (2/3) 2 4/3 ​ ⟹ R R ′ ​ =3 Since, I∝ R 1 ​ Hence, I I ′ ​ = 3 1 ​ Answer-(B)

Solve any question of Current Electricity with:-

Patterns of problems

>

184 26

स्रोत : www.toppr.com

## An electric current is passed through a circuit containing two wires of the same material, connected in parallel. If lengths and radii of the wires are in the ratio of 4 : 3 and 2 : 3 , then ratio of the currents passing through the wires will be

we known that R prop (l)/(r^(2)) rArr (R(1))/(R(2))=(l(1))/(l(2))xx(r(2)^(2))/(r(1)^(2))=(4)/(2)xx(9)/(4)=(3)/(1) Since it is parallel current, inversely proportional to resistance V=IR R prop (1)/(i), (R(1))/(R(2))=(i(2))/(i(1))rArr (3)/(1) = (i(2))/(i(1))rArr (i(1))/(i(2))=(1)/(3).

Home > English > Class 12 > Physics > Chapter > Current Electricity >

An electric current is passe...

An electric current is passed through a circuit containing two wires of the same material, connected in parallel. If lengths and radii of the wires are in the ratio of 4 : 3 and 2 : 3 , then ratio of the currents passing through the wires will be

Updated On: 27-06-2022

( 00 : 09 ) ADVERTISEMENT Text Solution Open Answer in App Solution we known that R∝ l r 2 ⇒ R 1 R 2 = l 1 l 2 × r 2 2 r 2 1 = 4 2 × 9 4 = 3 1

R∝lr2⇒R1R2=l1l2×r22r12=42×94=31

Since it is parallel current, inversely proportional to resistance

V=IR V=IR R∝ 1 i , R 1 R 2 = i 2 i 1 ⇒ 3 1 = i 2 i 1 ⇒ i 1 i 2 = 1 3

R∝1i,R1R2=i2i1⇒31=i2i1⇒i1i2=13

.

Step by step solution by experts to help you in doubt clearance & scoring excellent marks in exams.

## Related Videos

161350856 54 3.3 K 2:48

An electric current is passed through a circuit containing two wires of the same material, connected in parallel. If lengths and radii of the wires are in the ratio of 4 : 3 and 2 : 3 , then ratio of the currents passing through the wires will be

642678165 6 4.4 K

An electric current is passed through a circuit containing two wires of the same material connected in parallel. If the lengths and radii of the wire are in the ratio

4/3 4/3 and 2/3 2/3

, then the ratio of the currents passing through the wires will be

643265541 2 9.8 K 1:48

An electric current is passed through a circuit containing two wires of same material connected in parallel. If the lengths and radii of the wires are in the ratio of

4/3 4/3 and 2/3 2/3

, then the ratio of the currents passing through the wire will be

644647410 200 2.2 K 2:29

An electric current is passed through a circuit containing two wires of the same material connected in parallel. If the lengths and radii of the wire are in the ratio

4 3 43 and 2 3 23

, then the ratio of the currents passing through the wires will be

12297888 8 6.0 K 4:50

An electric current is passed through a circuit containing two wires of the same material connected in parallel. If the length and radii of the wires are in the ratio

2/3and4/3 2/3and4/3

, then find the ratio of the current passing through the wires

13166211 39 4.9 K 2:51

An electric current is passed through a circuit containing two wires of the same material connected in parallel. If the lengths and radii of the wire are in the ratio

4 3 43 and 2 3 23

, then the ratio of the currents passing through the wires will be

Popular Chapters by Class:

Class 6 Algebra

Basic Geometrical Ideas

Data Handling Decimals Fractions Class 7

Algebraic Expressions

Comparing Quantities

Congruence of Triangles

Data Handling

Exponents and Powers

Class 8

Algebraic Expressions and Identities

Comparing Quantities

Cubes and Cube Roots

Data Handling

Direct and Inverse Proportions

Class 9

Areas of Parallelograms and Triangles

Circles Coordinate Geometry Herons Formula

Introduction to Euclids Geometry

Class 10

Areas Related to Circles

Arithmetic Progressions

Circles Coordinate Geometry

Introduction to Trigonometry

Class 11 Binomial Theorem

Conic Sections

Introduction to Three Dimensional Geometry

Limits and Derivatives

Class 12

Application of Derivatives

Application of Integrals

Continuity and Differentiability

Determinants

Differential Equations

स्रोत : www.doubtnut.com

Do you want to see answer or more ?
Mohammed 1 month ago

Guys, does anyone know the answer?