A voltage of 15 volt is applied across a colour coded carbon resistor with first, second and third rings of brown, green and black colours. What is the current flowing through the resistor?

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 circ…

Resistance of a uniform metal wire of length 1 m and cross-sectional area 1 cm² is 10 Ω. Resistivity of the wire is

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

Which of the following is the resistance of the wire ?

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