ELECTRIC CURRENT AND IT'S EFFECT

ELECTRIC CURRENT AND IT'S EFFECT

7th Grade

11 Qs

quiz-placeholder

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ELECTRIC CURRENT AND IT'S EFFECT

ELECTRIC CURRENT AND IT'S EFFECT

Assessment

Quiz

Science

7th Grade

Hard

NGSS
MS-PS3-3, MS-PS1-4, MS-PS2-5

+3

Standards-aligned

Created by

ROOPAM TIWARI

Used 1K+ times

FREE Resource

11 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Q1. If in a circuit diagram containing a cell and nichrome wire tied between two nails, the cell is replaced by a battery then what will happen to the nichrome wire?

A)It gets red hot slowly.

B)No change in the temperature take place.

C)It will get red hot quickly.

D)The wire will break due to increase in strength of current.

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Q2. Why Nichrome is used for making wires of heating coils?

1.High melting point and low resistivity.

2.Low resistivity and high melting point.

3.High resistivity and high melting point.

4. It can get oxidised easily and have high melting point

Tags

NGSS.MS-PS3-3

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Q3. Which among the following are the advantages of heating effect of current?

1.Can be used in electric fuse

2.Increases the life of several appliances in the circuit.

3.It helps in preventing loss of energy.

Tags

NGSS.MS-PS1-4

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Q4. Which among the following is the diadvantage of heating effect of current?

1.It can break the insulation of wires/ devices.

2.It prevents energy loss.

3.It is used in working of electric fuse.

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Q5. Tungsten is used for the manufacture of an electric bulb because

A)it is malleable

B) it is inexpensive

C) it has a very high melting point

D) it is a good conductor

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Q6. Current in an electric circuit can exceeds it’s maximum limit when,

1.One device is connected to the socket.

2.Touching of two neutral wires.

3.Insulation break down.

4.Touching of two live wires.

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Q7. Current in an electric circuit increased it’s maximum limit when live wire and neutral wire touches each other due to wear and tear of the wires over a period of time. This phenomenon is known as:

1.Over loading.

2.Short- circuit.

3.Magnetic effect of current.

4.Heating effect of current.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

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