ICS Part 2 Physics Chapter 13 Short Questions Preparation

12th Class Physics
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Online Short Questions For Chapter 2 "ICS Part 2 Physics Chapter 13 Short Questions Preparation "

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Physics - ICS Part 2 Physics Chapter 13 Short Questions Preparation

Question # 1

What are non ohmic devices?Give two examples.

Ans 1: Those devices which don't obey the Ohm's law are called non-ohmic devices.Their current-voltage graphic is not a straight line.For example ,filament bulb and semiconductor diodes.

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Prepare Complete Set Wise Questions For Chapter 2 "ICS Part 2 Physics Chapter 13 Short Questions Preparation "

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Set 2

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ICS Part 2 Physics Chapter 13 Short Questions Preparation - Set 1

Question # 1

What are non ohmic devices?Give two examples.

Ans 1: Those devices which don't obey the Ohm's law are called non-ohmic devices.Their current-voltage graphic is not a straight line.For example ,filament bulb and semiconductor diodes.

Submit

ICS Part 2 Physics Chapter 13 Short Questions Preparation - Set 2

Question # 1

Briefly describe the current through a metallic conductor and drift velocity.

Ans 1: In a metallic conductor,free electron are in random motion with the speed of several hundred km/s at the room temperature.If the ends of the wire are connected to the battery the free electrons are experience a force and directed to move in the electric field direction.The accelerating electrons keep on colliding with atoms of the conductors and transfer their energy to the lattice with the result that the electrons acquire an average velocity called drift velocity.The drift velocity is of the order of 10^-3.A steady current is establish in the wire.

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ICS Part 2 Physics Chapter 13 Short Questions Preparation - Set 3

Question # 1

What is ohmic and non ohmic devices with example.

Ans 1: The devices which obey Ohm's law are called ohmic devices and devices which do not obey Ohm's law are called non-ohmic law.For example copper,silver and gold are ohmic whereas diodes and tungsten filaments are non ohmic.

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ICS Part 2 Physics Chapter 13 Short Questions Preparation

12th Class PhysicsShort Questions Preparation

12th Class Physics Chapter Wise Preparation

Online Short Questions For Chapter 2 "ICS Part 2 Physics Chapter 13 Short Questions Preparation "

Physics - ICS Part 2 Physics Chapter 13 Short Questions Preparation

What are non ohmic devices?Give two examples.

How can rheostat be used as potential divider?

What are the difficulties in testing weather the filament of lighted bulb obeys ohm's law?

How the heating effects produce when current flows through the conductor?

What is thermistor? Gives its two applications.

Does the bends in wire effect its electrical resistance?

Name any four source of current.

What is meant by tolerance?

What does the equation H=I2Rt show?

What is the effect on drift velocity of free electrons by increasing potential difference?

Prepare Complete Set Wise Questions For Chapter 2 "ICS Part 2 Physics Chapter 13 Short Questions Preparation "

Set 1

Set 2

Set 3

ICS Part 2 Physics Chapter 13 Short Questions Preparation - Set 1

What are non ohmic devices?Give two examples.

How can rheostat be used as potential divider?

What are the difficulties in testing weather the filament of lighted bulb obeys ohm's law?

How the heating effects produce when current flows through the conductor?

What is thermistor? Gives its two applications.

Does the bends in wire effect its electrical resistance?

Name any four source of current.

What is meant by tolerance?

What does the equation H=I2Rt show?

What is the effect on drift velocity of free electrons by increasing potential difference?

ICS Part 2 Physics Chapter 13 Short Questions Preparation - Set 2

Briefly describe the current through a metallic conductor and drift velocity.

Why does no current pass through Galvanometer in a balanced wheat stone bridge although the keys in the circuit are closed ?

Define resistivity and electrolysis.

A voltmeter can not read the exact EMF of the cell.Why?

Define Electromotive force and Terminal potential difference.

State Ohm's law and write its formula.

A potential difference is applied across the ends of a copper wire,What is the effect on the drift velocity of free electrons by decreasing the length and temperature of the wire?

Why does the resistance of a conductor rise with a temperature?

Does the bends in wire effect its electrical resistance?

Give two substance having negative temperature coefficient.Also define the temperature coefficient.

ICS Part 2 Physics Chapter 13 Short Questions Preparation - Set 3

What is ohmic and non ohmic devices with example.

Name any four source of current.

Do two long and parallel current carrying wires attract each other?

What is meant by tolerance?

Does the bends in wire effect its electrical resistance?

What is meant by Tolerance? Also give one example.

How can rheostat be used as potential divider?

Write about any two sources of Current.

State Ohm's law and write its formula.

Differentiate between resistance and resistivity.Give their unit.

ICS Part 2 Physics Chapter 13 Short Questions Preparation

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12th Class Physics
Short Questions Preparation

What does the equation H=I²Rt show?

What does the equation H=I²Rt show?