Explanation

An RC low-pass circuit is called a low-pass filter.

It allows signals with frequencies lower than a certain cutoff frequency to pass through while attenuating higher frequencies.

Explanation

The Superposition Theorem is applicable to linear response only.

It states that in a linear circuit with multiple sources.

The response (voltage or current) can be calculated by summing the responses due to each source independently.

Explanation

The condition of a fully charged lead-acid battery can be checked by:

Voltage: 2.1-2.2 volts per cell.

Gassing: Battery emits gas when fully charged.

Specific Gravity: 1.260-1.300 in the electrolyte.

Explanation

A cell converts chemical energy into electrical energy.

It generates electrical power through chemical reactions occurring within its electrodes and electrolyte.

Explanation

Load can be shifted in a parallel-connected induction motor by adjusting the field rheostat.

This changes the motor's excitation and affects its load distribution.

Explanation

Batteries with different EMF cannot be connected in parallel because KVL is not valid in this case.

Connecting such batteries can lead to excessive current flow and potential damage.

Explanation

The output of an XNOR (Exclusive NOR) gate will be high when the input logic levels are the same.

XNOR gates output a high signal when both inputs are either both high or both low.

Explanation

The AND gate represents a series gate.

It only outputs a high signal when all its inputs are high.

Similar to a series connection where current flows only if all conditions are met.

Explanation

SCR (Silicon Controlled Rectifier) is a four-layer device.

It consists of four layers of semiconductor material arranged as alternately P-type and N-type layers.

Explanation

• A Unijunction Transistor (UJT) has one junction.
• It is commonly used in triggering circuits for thyristors and other semiconductor devices.