Home
Class 12
PHYSICS
The power dissipated in the transmission...

The power dissipated in the transmission cables carrying current I and voltage V is inversely proportional to

A

`V `

B

`sqrt2`

C

`sqrtV`

D

`sqrtl`

Text Solution

Verified by Experts

The correct Answer is:
B
By power dissipated across a resistance
`P =VI or I = (P)/(V)`
Loss in transmission =`I ^(2) r `
`= ((P)/(V)) _(r) ^(2)`
`= (P ^(2))/(V ^(2)) r prop (1)/(V ^(2))`
So, loss in transmission is inversely proportional to `V ^(2).`
Promotional Banner

Similar Questions

Explore conceptually related problems

In the transmissionof ac power through transmission lines, when the voltage is stepped up n.times, the powier loss In transmission will be

In a transformer without any loss in power , there are 5000 turns in the primary and 250 turns in the secondary. The primary voltage is 120 V and the primary current is 0.1 A. Find the voltage and current in the secondary.