Question

what is the current if 12 ohm and 3 ohm resistors are connected in Parallel & Potential difference is applied

Answer 1

Explanation:

(a) Req =

3+2

3×2

=

5

6

=1.2Ω

(b) V=IR⇒I=

R

V

⇒I=

1.2

12

=10A

(c) 3(10−i)=2i (∵ Potential drop in parallel combination are same)

⇒30−3i=2i⇒30=5i⇒i=6A

Current in 2Ω resistor is =i=6A

Current in 3Ω resistor is =10−i=4A