Mix Test - 8...

Which of the following is NOT the property of equipotential surface?

Two point charges +8q and -2q are located at x = 0 and x = L respectively. The point on x axis at which net electric field is zero due to these charges is

An electric dipole of moment p is placed parallel to the uniform electric field. The amount of work done in rotating the dipole by \(90^\circ\) is

Three capacitors \(2\mu F,3\mu F\,and\,6\mu F\) are joined in series with each other. The equivalent capacitance is

Which statement is true for Gauss law

The best instrument for accurate measurement of EMF of a cell is

By increasing the temperature, the specific resistance of a conductor and a semiconductor

We use alloys for making standard resistors because they have

If the potential difference V applied across a conductor is increased to 2V with its temperature kept constant, the drift velocity of the free electrons in a conductor will

The SI unit of magnetic field intensity is

The coil of a moving coil galvanometer is wound over a metal frame in order to

The horizontal component of earth’s magnetic field at a place is \(\sqrt3\) times the vertical component. The angle of dip at that place is

The small angle between magnetic axis and geographic axis at a place is

Two coils are placed close to each other. The mutual inductance of the pair of coils depends upon the

The magnetic flux linked with the coil (in Weber) is given by the equation –
\(\phi=5t^2+3t+16\)

The induced EMF in the coil at time, t = 4 will be-

The instantaneous values of emf and the current in a series ac circuit are

\(E=Eo\,sin\,\omega t\,and\,I=Io\,sin(\omega t+\pi/3)\) respectively, then it is