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

a 4 ohm resistance wire is doubled on it calculate the new resistance of the wire

a 4 ohm resistance wire is doubled on it  calculate the new resistance of the wire 

Grade:12

2 Answers

Askiitians_Expert Yagyadutt
askIITians Faculty 74 Points
9 years ago

Well Keshav !..

mention the variable that you are doubling....Length or area of cross section of the Resistance..

If you will double the length ... New resistance will be 8 ohm

and if you will double the area ... new resistance will be 2 ohm ...

Reason is simple because resistance is directly proportional to length while inversely proportional to area ..

Now if you are put a resistance on the 4ohm ...then both will come in parallel and the new resistance will be 2 ohm ..!

Regards

Yagya

askiitians_expert

Pranay Pandey
34 Points
4 years ago
The length of the wire is halved. As length is directly proportional to the resistance the resistance will be halved and the new resistance will be 2 ohm

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