$100 \,J$ of heat is produced each second in a $4\, \Omega$ resistance. Find the potential difference across the resistor.
Define one ampere.
The $V -I$ graph for series and parallel combination of two metallic resistors is as shown in the figure. Which graph represents parallel combination? Justify your answer.
The quantity of charge flowing past a point multiplied by time is current.
How much work is done in moving a charge of $2\, C$ across two points having a potential difference $12 \,V ?$