3 A constant force is being applied on a rod of length l

Last updated: 6/4/2023

3 A constant force is being applied on a rod of length l kept at rest on two parallel conducting rails connected at ends by resistance R in uniform magnetic field B as shown R OB F a the power delivered by force will remain constant with time b the power delivered by force will be increasing first and then it will decrease c the power delivered by force will be increasing continuously d the power delivered by force will be decreasing