12th Class Fsc Physics Online Preparation

Online Short Questions For Chapter 3 "12th Class Physics Chapter 3 Short Questions Preparation "

Try The Short Questions For 12th Class Physics Chapter 3 Short Questions Preparation

  • Total Questions10

  • Available Sets4

Start Test Download PDF

Physics - 12th Class Physics Chapter 3 Short Questions Preparation

Question # 1

Why the voltmeter should have the very high resistance?

  • Ans 1: A voltmeter is connected in parallel to the resistor to measure potential difference across it,it should have very high resistance so that practically a very little current should pass through it and the current of the circuit should almost remains constant,so that it might measure the potential difference across a resistor accurately.
Submit

Prepare Complete Set Wise Questions For Chapter 3 "12th Class Physics Chapter 3 Short Questions Preparation "

12th Class Physics Chapter 3 Short Questions Preparation - Set 1

Question # 1

Why the voltmeter should have the very high resistance?

  • Ans 1: A voltmeter is connected in parallel to the resistor to measure potential difference across it,it should have very high resistance so that practically a very little current should pass through it and the current of the circuit should almost remains constant,so that it might measure the potential difference across a resistor accurately.
Submit

12th Class Physics Chapter 3 Short Questions Preparation - Set 2

Question # 1

Briefly give the function of Filament,Cathode,Grid and plates in C.R.O.

  • Ans 1: Filament: It heats the cathode.
    Cathode: It emits the electrons.
    Grid:It controls the number of electrons.
    Plates: The two sets of plates are used to deflect the beam of electrons along x axis and y axis.
Submit

12th Class Physics Chapter 3 Short Questions Preparation - Set 3

Question # 1

Name the main part of CRO.

  • Ans 1: A filament,cathode grid,anodes,horizontal deflections plates,vertical deflection plates and fluorescent screen.
Submit

12th Class Physics Chapter 3 Short Questions Preparation - Set 4

Question # 1

Define energy.

  • Ans 1: The magnetic energy stored in the inductor per unit is referred as energy density.
Submit

ic-science-white
Physics
14th Chapter

12th Class Physics Ch 14 Preparation

Here you can prepare 12th Class Physics Chapter 14 (electromagnetism ) . Click the button for 100% free full practice .

Start Chapter 14 Preparation

Is this page helpful?