Question

Two wires that are made up of two different materials, whose specific resistances are in the ratio 3:2, length 4:3 and area 5:4. The ratio of their resistances is​

Physics ka hai

Answer 1

Step-by-step explanation:

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

Answer 2

Answer:

3:2 3

_

2

Step-by-step explanation:

12:9