Though the graph is a height-time graph, it is similar to a distance-time graph. Questions: 2017PPp1q3 and 2020PPp1q5 Answer: Option D

Instead of P = IV to explain, it might be easier to explain using P = I^2R when the components are connected in series where current I is...

Resistors may be connected in series or parallel. When asked which resistor has higher power (hence higher energy), in general we will...

When gas in piston and heated but pressure remains constant. It is easier to explain in terms of the average force acting on a unit area....

Answer: Option A