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
Grade: 10
        
The potential of certain points in the circuit are maintained at the values indicated. The voltmeter and ammeter are ideal. Find the potential of the cross junction point in the circuit and the readings of voltmeter and ammeter. All cells are ideal.
7 months ago

Answers : (1)

Vikas TU
7091 Points
							
Let x be the volts at the junction, then applying KCL at the junction we get,
(x+20)/20 + (x + 20)/10 + (x – 16)/10 + (x-0)/20 = 0
(x+ 20 + 2x + 40 + 2x – 32 + x) = 0
6x + 28 = 0
x = -28/6 => -14/3 volts
Hence at junction it is -14/3 volts.
 
The reading of ammeter would be => I = (-14/3 – 0 )/20 => -14/60 = -7/30 A
minus sign indicates that the direction is opposite of what we assumed.
6 months ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies


Course Features

  • 101 Video Lectures
  • Revision Notes
  • Previous Year Papers
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Test paper with Video Solution


Course Features

  • 110 Video Lectures
  • Revision Notes
  • Test paper with Video Solution
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions


Ask Experts

Have any Question? Ask Experts

Post Question

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