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GENAP302_APPLIED PHYSICS_LO4.3_Demonstration of effects of electric field on charged particles

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17 questions

IC4.3: Demonstratation of effects of electric field on charged particles

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On 12/04/2024

Question 1

1.

What determines the direction of the force exerted on a charged particle when it enters an electric field?

The particle's speed

The charge's sign and the field's direction

The field's magnitude

The charge's magnitude

Question 2

2.

A positively charged particle is released in a uniform electric field. What will be the force experienced by the particle?

A force opposite to the field's direction

A force perpendicular to the field's direction

No force

A force in the direction of the field

Question 3

3.

If the distance between two charges in an electric field is doubled, what happens to the electrostatic force between them?

It doubles

It decreases by half

It decreases to a quarter of its original value

It remains the same

Question 4

4.

Which of the following quantities does not affect the strength of an electric field created by a point charge?

The mass of the charge

The distance from the charge

The absolute value of the charge

The permittivity of the surrounding medium

Question 5

5.

What does capacitance measure in a capacitive circuit?

Ability to store an electric charge

Flux of electric field

Charges per volt

Resistance to electrical flow

Question 6

6.

What are the SI units of capacitance?

Amps

Ohms

Volts

Farads

Question 7

7.

What happens to the capacitance if the distance between the plates of a capacitor increases?

No change in capacitance

Capacitance doubles

Capacitance increases

Capacitance decreases

Question 8

8.

When is capacitance called 'small'?

When it’s less than 1 farad

When it’s less than 1 nanofarad

When it’s less than 1 microfarad

When it’s less than 1 millifarad

Question 9

9.

Which of these are examples of electrostatic phenomena?

Electromagnetic induction

Static cling

Lightning

Diffraction of waves

Question 10

10.

Which of these are examples of electrostatic phenomena?

Electromagnetic induction

Lightning

Diffraction of waves

Static cling

Question 11

11.

What are the effects of electrostatics in everyday life?

Radio wave transmission

Static shock

Dust attraction to a TV screen

Echo sound

Question 12

12.

Which of these can demonstrate electrostatic repulsion?

Pushing apart of hair strands after rubbing with a balloon

Flow of electricity in a wire

A falling apple

Rubbing a balloon and sticking it to a wall

Question 13

13.

Which of these actions will help in reducing electrostatic charge build up on a body?

Using a grounding wire

Decreasing environmental humidity

Increasing air temperature

Increasing environmental humidity

Question 14

14.

Lightning is a result of a build-up of static electricity in the atmosphere.

True

False

Question 15

15.

The static cling that occurs between clothes in the dryer is an example of an electrostatic phenomenon.

True

False

Question 16

16.

Lightning is an example of an electrostatic phenomenon, True or False?

True

False

Question 17

17.

Static electricity is a form of electrostatic phenomenon that can be observed in everyday life, such as when clothes stick together after being in the dryer. True or false?

True

False