A heating filament and an ideal resistor of fixed value are connected in series with a DC voltage source. After some time, the filament has reached its operating point so that the current in the circuit is steady. Which one of the following is correct?

Which one among the following statements regarding the electrical resistivity of a conducting wire is correct?

Given below are two statements, one is labelled as Assertion (A) and the other as Reason (R). Assertion (A): Generally an alloy of lead and tin is used as a material of the fuse wire. Reason (R): All…

Which one among the following statements related to electric cells is correct?

In short circuit, the value of electric current in a time circuit:

Which of the following is the resistance of the wire ?