Quiz about Generators

Question 1

What is the energy input for this device?

Accepted Answer

Mechanical: from the wrapped string pulled by the hand

Answer

Mechanical: from the battery attached to the lightbulb.

Answer

Electrical: from the lightbulb attached to the generator.

Answer

Electrical: from the turbine to the iron core.

Question 2

Motor or Generator?

Accepted Answer

Generator

Input: mechanical

Output: electrical

Answer

Motor

Input: mechanical

Output: electrical

Answer

Motor

Input: electrical

Output: mechanical

Answer

Generator

Input: electrical

Output: mechanical

Question 3

Motor or Generator?

Accepted Answer

Generator

Input: mechanical

Output: electrical

Answer

Motor

Input: electrical

Output: mechanical

Answer

Motor

Input: mechanical

Output: electrical

Answer

Generator

Input: electrical

Output: mechanical

Question 4

Motor or Generator?

Accepted Answer

Generator

Input: mechanical

Output: electrical

Answer

Motor

Input: electrical

Output: mechanical

Answer

Generator

Input: electrical

Output: mechanical

Answer

Motor

Input: mechanical

Output: electrical

Question 5

Motor or Generator?

Accepted Answer

Generator: mechanical energy that turns the solenoid is converted to electrical energy in the lightbulb

Answer

Motor: mechanical energy that turns the solenoid is converted to electrical energy in the lightbulb

Answer

Motor: electrical energy from the lightbulb is converted to mechanical energy in the solenoid

Answer

Generator: electrical energy from the lightbulb is converted to mechanical energy in the solenoid.

Question 6

Motor or Generator?

Accepted Answer

Generator:

converts mechanical energy into electrical energy

Answer

Motor: converts mechanical energy into electrical energy

Answer

Generator: converts electrical energy into mechanical energy

Answer

Motor:

converts electrical energy into mechanical energy

Question 7

Which of these pairs of devices operate in reverse of each other?

Accepted Answer

generator and motor

Answer

generator and electromagnet

Answer

motor and electromagnet

Answer

electromagnet and resistor

Question 8

What do you call a device that converts mechanical movement into electricity?

Accepted Answer

electric generator

Answer

electric field

Answer

electric motor

Answer

electric plasma

Question 9

What must the student do in the picture, in order to induce electricity and move the the galvonometer

Accepted Answer

move the magnet

Answer

nothing

Answer

add more loops of wire

Answer

unplug the galvnonmeter

Question 10

Which of the following components is essential for a generator to produce electricity?

Accepted Answer

D) Armature

Answer

A) Rotor

Answer

B) Stator

Answer

C) Commutator

Question 11

In a hydroelectric power plant, what type of energy transformation occurs in the generator?

Accepted Answer

A) Kinetic to electrical

Answer

B) Potential to thermal

Answer

C) Chemical to electrical

Answer

D) Thermal to mechanical

Question 12

What is the role of a commutator in a DC generator?

Accepted Answer

C) To maintain the direction of current

Answer

A) To convert AC to DC

Answer

B) To convert DC to AC

Answer

D) To increase voltage

Question 13

Which scientific principle explains the operation of a generator?

Accepted Answer

B) Faraday's Law of Electromagnetic Induction

Answer

A) Ohm's Law

Answer

C) Newton's Third Law

Answer

D) Bernoulli's Principle

Question 14

If a generator produces a voltage of $$V = 240 \, ext{V}$$ and a current of $$I = 10 \, ext{A}$$ , what is the power output?

Accepted Answer

A) 2,400 W

Answer

B) 24 W

Answer

C) 240 W

Answer

D) 2,400 kW

Question 15

Which of the following best describes the function of a generator in a wind turbine?

Accepted Answer

C) It converts mechanical energy into electrical energy

Answer

A) It stores energy for later use

Answer

B) It converts wind energy into mechanical energy

Answer

D) It regulates the speed of the turbine blades

Generators

15 questions

What is the energy input for this device?

Motor or Generator?

Motor or Generator?

Motor or Generator?

Motor or Generator?

Motor or Generator?

Which of these pairs of devices operate in reverse of each other?

What do you call a device that converts mechanical movement into electricity?

What must the student do in the picture, in order to induce electricity and move the the galvonometer

Which of the following components is essential for a generator to produce electricity?

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