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12th Class Physics
Short Questions Preparation
Start Chapter 13 Preparation
12th Class Physics Chapter Wise Preparation
Online Short Questions For Chapter 2 "ICS Part 2 Physics Chapter 13 Short Questions Preparation "
Try The Short Questions For ICS Part 2 Physics Chapter 13 Short Questions Preparation
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Total Questions10
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Available Sets3
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.
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.
ICS Part 2 Physics Chapter 13 Short Questions Preparation - Set 2
Question # 1
What is thermistor? Gives its two applications.
- Ans 1: Thermistors are heat sensitive resistors.Thermistors with positive temperature coefficient of resistance as well as negative temperature coefficient of resistance are available.They are used for accurate measuring of temperature up to 10K.They are used as temperature sensors.
ICS Part 2 Physics Chapter 13 Short Questions Preparation - Set 3
Question # 1
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?
- Ans 1: By decreasing the length and temperature of wire the value of resistance in the wire also decrease which cause an increase in the value of current,Hence the drift velocity of free electrons also increase.
