Diamond is a paramagnetic material.

Which capacitor-store higher amount of energy?

Above ferroelectric curie temperature, spontaneous polarization in ferroelectric materials becomes stronger.

In paramagnetic materials

Assertion (A): Atomic number of sodium is 11. Reason (R): Sodium has a body centred cubic lattice.

The core of a coil has a length of 10 cm. The self inductance is 8 mH. If the core length is doubled, all other quantities remaining the same, the self inductance will be

The minority carrier life time and diffusion constant in a semiconducting material are 100 μs and 100 cm2/s respectively. The diffusion length of carriers is

Assertion (A): Electronic and Ionic polarization in a polyatomic gas are independent of temperature. Reason (R): The orientation polarization is independent of temperature.

Two materials having temperature coefficients of 0.004 and 0.0004 respectively are joined in series. The overall temperature coefficient is likely to be

The number of valence electrons in pentavalent impurity is

If the diameter of a wire is doubled, its current carrying capacity becomes

The law J = σE, where J is current density, σ is electrical conductivity and E is field strength is

Assertion (A): Silicon is less sensitive to changes in temperature than germanium. Reason (R): Cut in voltage in silicon is less than that in germanium.

Material which lack permanent magnetic dipoles are known as

In a parallel resonant circuit, the circuit current at resonance is maximum.