Physics Questions and Answers

The diagram above shows three circuits, the internal resistances of the batteries are negligible. which of the currents is the largest

Which of the following figures gives the correct resultant R of two vectors P and Q?

Each of the figures in the diagram above represent two current carrying conductors situated close to each other. In which two diagrams, are the forces between the two wires attractive

In the Figure above, QR is a vertical conductor and the current I flows from R to Q, P is a point on the horizontal plane and is to the south of the wire. The direction of the magnetic field at P due to the current is

Four resistors R1,R2,R3 and R4 are connected in series as shown above, V1,V2,V3 are voltmeters connected as indicated above. Which of the following relations is correct?