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
Menu
lokesh Grade: 6
        
A coil inductance 8.44 mH and resistance 6 O is connected to a. 12 V battery. The current in the coil is 1.0  A at approximately the time
(a) 500 s
(b) 25 s
(c) 35 ms
(d) 1 ms
3 years ago

Answers : (1)

Navjyot Kalra
askIITians Faculty
654 Points
										

(d) KEY CONCEPT : Using I = I0

But I0 = V/R and t = L/R

? I = V/R (1 – e-Rt/L) = 12/6 [ 1 – e-6t/8.4x 10-3]

1 (given)

? t = 0.97 x 10-3 ˜ 1 ms

(D)

1. (a,b,c)

1/RC, R/L and 1/ vLC have the dimensions of frequency
3 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies
  • Complete JEE Main/Advanced Course and Test Series
  • OFFERED PRICE: Rs. 15,900
  • View Details
Get extra Rs. 7,950 off
USE CODE: askschssp
  • Electricity and Magnetism
  • OFFERED PRICE: Rs. 1,696
  • View Details

Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!! Click Here for details