Question

A 10 , a 15, and a 5 resistor are connected in series across a 90V battery. What is the voltage used by the 15 resistor?

Answer 1

Answer:

45VOLT

Explanation:

in series

Req. = R1+RE+RE

.: Req= 30 ohm

by ohms law

v=IR

.: I = 90/30

.: I = 3 A

in series current is same in all resistor

.: in 15 ohm resistor

v=IR

V= 15×3

V = 45 V