Physics Test - ...

Two waves represented by  the resultant amplitude will be:

If an electric dipole of dipole moment p is placed in a uniform electric field E at an angle θ, then the torque produced on the dipole will be:

The area of the plates of a parallel plate capacitor is A and the distance between the plates is d. If the capacitor is charged with the charge of magnitude Q, then the electric field intensity between the plates of the capacitor is:

The resistance of a wire is 10 Ω. If it is stretched ten times, the resistance will be

If a current of 10 ampere is drawn for 2 hour through the filament of a bulb, find the amount of electric charge flowing through the circuit.

If Q, E and W denote respectively the heat added, change in internal energy and the work done by a closed cycle process, then :

The torque on a current-carrying rectangular loop is τ when it is placed in a uniform magnetic field at an angle θ. If the length and the width of the loop is doubled then the torque on the loop at an angle θ will be:

At which place Earth’s magnetic field becomes horizontal

When a person starts walking on a hot surface, the heat transfers from the hot surface of a person's foot by a mode of _________.

The SI unit of current density is