List of top Physics Questions on Electrical Instruments asked in Telangana State Engineering Agriculture & Medical CET

A coil of 200 turns and area of cross-section $5 \times 10^{-3} \, m^2$ carries a current of 3 A. - The magnetic moment of the coil is

In Geiger-Marsden experiment, if the initial speed of $\alpha$ particle is doubled, then the closest distance of approach of the $\alpha$ particle from the gold nucleus - (Assume $\alpha$ particle is projected straight towards the gold nucleus)

Resonance phenomenon is exhibited by a circuit only if:

The resistance of a wire is $2.5 \Omega$ at a temperature $373 K$ . If the temperature coefficient of resistance of the material of the wire is $3.6 \times 10^{-3} K^{-1}$ , its resistance at a temperature $273 K$ is nearly:

Two equal resistances are connected in the two gaps of a meter bridge. If the resistance in the right gap is doubled, then the change in the balancing length is:

The quality factor of a series LCR resonant circuit is 75. If the resistance is decreased by 50\% and the inductance is increased by 100\%, then the quality factor of the circuit is:

A zener diode of zener voltage 30 V is connected in a circuit as shown in the figure. The maximum current through the Zener diode is:

Two logic gates are connected as shown in the figure. If the inputs are $A = 1$ and $B = 0$ , then the values of $y_1$ and $y_2$ respectively are:

Normally a capacitor is connected across the output terminals of a rectifier to

The process of the loss of strength of a signal while propagating through a medium is

Two point charges -10 ÂµC and +5 ÂµC are situated on the X-axis at $x = 0$ and $x = \sqrt{2} \, \text{m}$ . The point along the X-axis where the electric field becomes zero is.

A conductor of length 1.5 m and area of cross-section $3 \times 10^{-5} \, \text{m}^2$ has electrical resistance of 15 $\Omega$ . The current density in the conductor for an electric field of 21 $\text{V/m}$ is.

An inductor and a resistor are connected in series to an AC source of 10 V. If the potential difference across the inductor is 6 V, then the potential difference across the resistor is