Question

14. Find the current through the circuit shown in Figure
4.E1. Also, find the potential difference across the
20-22 resistor.
2012
15 12
H
7V
Fig. 4.E1​

Answer 1

Answer:

Let R1 = 20 ohm and R2= 15 ohm

Rs=20+15

=35 ohm

Therefore I = V/R

=7/35

=0.2A

Answer 2

Explanation:

Let R1=20 ohm and R2=15 ohm

They= R1 +R2

=20+15

=35 ohm

V=IR

I=V/R

I=7/35

I=0.2 A

Potential difference, using ohms law,

V=IR

V=0.2×20

V=4V.