Question

Five resistors are connected in a circuit as shown in the image

Find the ammeter reading when the circuit is closed ​

Answer 1

Explanation:

given

resistor 3ohm , 3ohm , 3ohm and .5 ohm ,.5ohm

voltage = 3v

all 3 ohm resistor are connected in serise so

R = 3 + 3 + 3

R= 9ohm

similarly 9ohm and .5 ohm resistor are connected in series

so R = 9 + .5+.5

R = 10ohm

then reading of ammeter is reading of current

so I= V/R

then I = 3/10

there fore I = .3 ampere

so .3 is reading of ammeter