A circuit is set up as shown in the diagram above. When t...
A circuit is set up as shown in the diagram above. When the key is closed, the ammeter reading will be
6A
4A
2A
1A
Correct answer is C
The resistors are connected both in parallel and series. To calculate the total resistance, we have:
For the parallel connection: 1R=11+11
1R=2⟹R=0.5Ω
For the series connection: Rtotal=(1+0.5)Ω=1.5Ω
Recall, V=IR
3=1.5I⟹I=31.5=2A
Similar Questions
The product PV where P is pressure and V is volume has the same unit as ...
The acceleration due to gravity may be defined as the force ...
Metals are good conductors of electricity because ...
Which of the following are the correct SI units of the quantities indicated? i.N(Force) ii. N/m&...
When impurities are added to semi-conductors, the conductivity of the semi-conductor ...