Physics

1Kirchhoff's first (current) law states that at a junction

2Kirchhoff's first law states that at a junction

3A potential divider has resistors of 2 kΩ and 8 kΩ across 10 V. What is the voltage across the 8 kΩ resistor?

4In a loop with e.m.f.s 12 V and 4 V opposing each other and total resistance 4 Ω, the current is

5At a junction, 3 A and 2 A flow in. The current flowing out is

6Three currents of 2 A, 3 A and 1 A flow into a junction. One current flows out. How large is it?

7In a balanced Wheatstone bridge, P = 4 Ω, Q = 8 Ω and R = 6 Ω. The unknown S is

8Kirchhoff's second law is based on conservation of

9Kirchhoff's second (voltage) law is based on the conservation of

10A cell of e.m.f. 12 V and internal resistance 1 Ω is connected to a 5 Ω resistor. What current flows?