Home
Class 12
PHYSICS
Assertion : Sensitive electrical instrum...

Assertion : Sensitive electrical instruments should not be placed in the vicinity of an electromagent.
Reason : Electromagnet can damage the instruments.

Text Solution

Verified by Experts

The correct Answer is:
a
Senstive electrical instrument instrum in the vicinity of electromeagent can be damaged due to the inducedd emfs and the resulting currens when the electrognets is turned nor or off.
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    NCERT FINGERTIPS ENGLISH|Exercise The Experiments Of Faraday And Henry|2 Videos

  • ELECTROMAGNETIC INDUCTION

    NCERT FINGERTIPS ENGLISH|Exercise Magnetic Flux|3 Videos

  • ELECTROMAGNETIC INDUCTION

    NCERT FINGERTIPS ENGLISH|Exercise EXEMPLAR PROBLEMS|3 Videos

  • ELECTRIC CHARGES AND FIELDS

    NCERT FINGERTIPS ENGLISH|Exercise Assertion And Reason|15 Videos

  • ELECTROMAGNETIC WAVES

    NCERT FINGERTIPS ENGLISH|Exercise Assertion And Reason|15 Videos

Similar Questions

Explore conceptually related problems

Name the instrument used to measure the current in an electric circuit.

Assertion : The basic difference between various types of electromagnetic waves lies in their wavelength or frequencies Reason : Electromagnetic waves travel through vacuum with the same speed.

Name the instrument used to control current in an electric circuit.

Assertion: To protect any instrument from external magnetic field, it is put inside an iron body. Reason: Iron is a magnetic substance.

Assertion : Electromagnetic waves carry energy and momentum Reason : Electromagnetic waves can be polarised.

Give reason A heater should be placed low in a room to warm the room.

Assertion : The electromagnetic wave is transverse in nature Reason : Electromagnetic wave propagates parallel to the direction of electric and magnetic fields.

Assertion: In the measurement of physical quantities direct and indirect methods are used. Reason : The accuracy and precision of measuring instruments along with errors in measurements should be taken into account, while expressing the result.

Assertion Photoelectric effect can take place only with an electron bound in the atom Reason Electron is a fermion Whereas proton is a boson

(i) What is the function of earth wire in electrical instruments? (ii) Explain what is short circuiting an electric supply. (iii) What is the usual current rating of the fuse wire in the line to feed?