Question

Two wires that are made up of two different materials whose specific resistance are
in the ratio 2: 3, length 3 : 4 and area 4 : 5. The ratio of their resistances is
1) 6:5
2) 6:8
3) 5:8
4) 1:2
Thelonifonindrilia inaraosad hy 10
Due to the con​

Answer 1

Explanation:

Your answer is (C) I hope it will be help full for you thanks

Answer 2

Answer:

Given :

ρ

2

ρ

1

=

3

2

l

2

l

1

=

4

3

A

2

A

1

=

5

4

Resistance of the wire R=

A

ρl

∴ Ratio of resistance

R

2

R

1

=

ρ

2

ρ

1

l

2

l

1

A

1

A

2

⟹

R

2

R

1

=

3

2

4

3

4

5

=

8

5