2nd Year Physics Chapter 13 Online Preparation

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

Try The Short Questions For 12th Class Physics Chapter 2 Short Questions Preparation

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Physics - 12th Class Physics Chapter 2 Short Questions Preparation

Question # 1

Define Electromotive force and Terminal potential difference.

  • Ans 1: Electromotive force:The energy supplied to a unit charge in moving it from negative to positive electrode inside the source is called electromotive force.
  • Ans 2: Terminal potential difference:The potential difference across the terminal of a cell or battery when current is being drawn from it is called terminal potential difference.The potential difference across the conductor is zero when no current flows through it.
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Prepare Complete Set Wise Questions For Chapter 2 "12th Class Physics Chapter 2 Short Questions Preparation "

12th Class Physics Chapter 2 Short Questions Preparation - Set 1

Question # 1

Define Electromotive force and Terminal potential difference.

  • Ans 1: Electromotive force:The energy supplied to a unit charge in moving it from negative to positive electrode inside the source is called electromotive force.
  • Ans 2: Terminal potential difference:The potential difference across the terminal of a cell or battery when current is being drawn from it is called terminal potential difference.The potential difference across the conductor is zero when no current flows through it.
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12th Class Physics Chapter 2 Short Questions Preparation - Set 2

Question # 1

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

  • Ans 1: The temperature coefficient of a resistance is defined as fractional change in resistance per kelvin rise in temperature.Its unit is K-1.Substance like Ge and Si have negative temperature coefficient.
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12th Class Physics Chapter 2 Short Questions Preparation - Set 3

Question # 1

How a wheatstone bridge is used to determine an unknown resistance?

  • Ans 1: Wheatstone bridge is an especially designed electrically circuit used to calculate the accurate value of any unknown resistance.It consists of four resistance,a galvanometer, a battery and a switch connected.When the switch is closed current pas through the galvanometer and then the three known resistance R1,R2and R3are adjusted in such a way that galvanometer show no deflection,In this balanced condition the fourth unknown resistance R4can be calculated by using this relation.R1/R2=R3/R4.
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13th Chapter

12th Class Physics Ch 13 Preparation

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