Question

9. Find the radius of the incircle of a triangle with sides measuring 32 cm, 60 cm and 68 cm.​

Answer 1

Answer:

(a) Total resistance of the circuit =R

1

+R

2

=20+4=24ohm

(b) We know that

V=IR

Therefore,

6=I×24

I=6/24=0.25amp

(c) p.d. across bulb =IR

1

=0.25×20=5V

(d) p.d. across resistance wire =IR

2

=0.25×4=1V

solution