0

Guest

Courses New

four cells each of emf 2V and internal resistance 1ohm are connected in parallel with an external resistance of 6ohm.The current in the external resistance is?

four cells each of emf 2V and internal resistance 1ohm are connected in parallel with an external resistance of 6ohm.The current in the external resistance is?
 

Grade:12

2 Answers

Arun
25757 Points
4 years ago
I) As cells are in parallel, the battery has net emf of 1.5 V and its net internal resistance, r is given by 
1/r = 1 + 1 + 1 + 1= 4 => r = 0.25 ohm. 
(ii) total resistance, R = 0.25 + 6 = 6.25 ohm
(iii) current flowing in the external circuit is
I = 2 / R = 2 / 6.25 = 0.32A
 
Khimraj
3007 Points
4 years ago
 
 battery has net emf of 2 V and its net internal resistance, r is given by 
1/r = 1 + 1 + 1 + 1= 4 => r = 0.25 ohm. 
R = 0.25 + 6 = 6.25 ohm
current 
I = 2 / R = 2 / 6.25 = 0.32A

 

Think You Can Provide A Better Answer ?

Other Related Questions on Electric Current

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More