Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping

two wires aand b of the same material having same length have their cross section areas in ratio 1ratio6 . what would be the ratio of heat produced in these wires when same voltage is applied across each?

two wires aand b of the same material having same length have their cross section areas in ratio 1ratio6 . what would be the ratio of heat produced in these wires when same voltage is applied across each?

Grade:12

1 Answers

Sanju
106 Points
3 years ago
Given that the cross section area of wire a & b are in the ratio 1:6
We have, H = I2RT   & R = ρL/A
where H = heat produced, I = current, R = resistance, T=time, ρ=resistivity of the material, L = length of the wire and A = area of cross section..
Substituting the relation R = ρL/A in the eqn  H = I2RT
H = I2(ρL/A)T
Since A1: A2 = 1:6, the ratio of heat produced in wire a & b is:
H1: H2 = A2:A1 = 6:1
 
The ratio of heat produced in the wire a & b when same voltage is applied across each wire = 6:1
 

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free