Explanation

The resistance of a semiconductor with a rise in temperature decreases.

This occurs because increasing temperature provides more energy to charge carriers.

It allowing them to move more freely and conduct electricity better.

Explanation

A lumped parameter circuit delay line is a low-pass filter.

It allows low-frequency signals to pass through while attenuating higher frequencies, effectively delaying the signal.

Explanation

The conduction in an SCR (Silicon Controlled Rectifier) is controlled by the gate.

Applying a gate signal triggers the SCR to conduct between the anode and cathode.

Explanation

 Andre-Marie Ampere discovered that a current-carrying conductor experiences a force when placed in a magnetic field.

This forms the basis of electromagnetism and is the principle behind electric motors.

Explanation

The speed of sound is maximum in Helium because:

• Sound travels faster in lighter gases.
• Helium is lighter than both platinum and oxygen.
• The speed of sound is directly proportional to the square root of the gas's temperature and inversely proportional to the square root of its molecular mass.

Explanation

Explanation

The secondary voltage (Vs) is given by:

Vs = (Ns/Np) * Vp

where Ns is the number of turns in the secondary coil, Np is the number of turns in the primary coil, and Vp is the primary voltage.

Vs = (500/150) * 100 = 1000/3 *3= 1000/3 * 3=1000

Explanation

1 kilowatt-hour (kWh) is equivalent to 3.6 million joules (MJ).

As it represents the energy used when 1 kilowatt of power is consumed for 1 hour.

Explanation

The induced current will flow in such a direction so as to oppose the cause that produces it is the statement of Lenz's Law.

This law reflects the principle of conservation of energy in electromagnetic induction.

Explanation

A photoelectric transducer element converts light intensity to voltage.

It detects light and produces an electrical signal that varies with the intensity of the light.