badge image

Enroll For Free Now & Improve Your Performance.

×
User Icon
User Icon
User Icon
User Icon
User Icon

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
Menu
Grade: 12

                        

Two batteries with emf 12v and 13v are connected in parallel across a load resistor of 10ohm. Internal resistances are 1 and 2 ohm respectively. Range of the voltage across the load.

one year ago

Answers : (3)

Arun
25122 Points
							

Let VL represent the unknown load voltage. From KCL:

(13-VL)/2 + (12-VL)/1 = VL/10

Now multiply by 10 to remove fractions:

5(13-VL) + 10(12-VL) = VL

Expand terms:

65 -5VL + 120 - 10VL = VL

Then group like terms:

(65 + 120) + (-5VL - 10VL) = VL

And simplify:

185 - 15VL = VL

Bring all VL terms to right side:

185 = 16VL

and solve for VL:

VL = 185/16

Simulation gets the same value (rounded to two decimal places:

 

one year ago
Khimraj
3007 Points
							
from junction law we can write
(x-12)/1 + (x-13)/2 + (x-0)/0 = 0
x = 185/16
….....................................................
one year ago
Ayush_Deep
120 Points
							
Kindly draw the circuit according to the question . Then let the potential of lower polarity of battery be 0 and internal resistance connected to upper polarity.
Now apply KCL at the junction ,
(V--12)/1 + (V -- 13)/2 + (V--0)/10 =0
V = (120+65)/16
= 185/16
= 11.56
So correct answer will be option 2
Hope you understood
7 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