Basic Electrical Engineering MCQs Part 27

Basic Electrical Engineering MCQs Part 27

Kirchhoff’s voltage law deals with

Kirchhoff’s voltage law deals with:

1. Conversation of angular momentum
2. Conversation of charge
3. Conversation of energy
4. Conversation of momentum

Correct answer: 3. Conversation of energy

Also see: Permeability is reciprocal of

The EMF of a cell depends on

The EMF of a cell depends on:

1. External resistance
2. Internal resistance
3. Electrolyte and electrodes of cell
4. None of these

Correct answer: 3. Electrolyte and electrodes of cell

When cells are arranged in parallel configuration

When cells are arranged in parallel configuration:

1. EMF increases
2. EMF decreases
3. Current capacity increases
4. Current capacity decreases

Correct answer: 3. Current capacity increases

In certain circuit, identical wires of nichrome and copper are connected in series configuration. This results in

In certain circuit, identical wires of nichrome and copper are connected in series configuration. This results in:

1. Greater heat in nichrome
2. Greater heat in copper
3. Greater current in nichrome
4. Greater current in copper

Correct answer: 1. Greater heat in nichrome

The internal resistance of cell having EMF 3 V is 0.1 ohms

The internal resistance of cell having EMF 3 V is 0.1 ohms. It is connected to a resistance having value 2.9 ohms. The voltage across cell is:

1. 1 A
2. 2 A
3. 2.9 A
4. 4 A

Correct answer: 1. 1 A

Solution:

Formula for current:

I = E/(R+r) = 3/(2.9+0.1) = 3/3=1 A

More MCQs in Electrical Engineering:

1. Basic Electrical Laws and Theorems
2. Basic Voltage and Current MCQs
3. High Voltage Engineering MCQs
4. Induction Motor MCQs
5. Power Electronics