Class 10 Science Magnetic Effects Of Electric Current? CBSE Questions & Answers

Class 10 · Science Magnetic Effects Of Electric Current?

This is Science class 10 Science Magnetic Effects of Electric Current? CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
Match the following with correct response. (1) Direction of induced current produced by motion of conductor in a magnetic field in given by (2) Direction of force acting an a current carrying conductor kept in a magnetic field is given by (3) Production of electricity from magnetism (4) High powered electrical appliances are connected to the earth (A) Fleming?s left hand rule (B) Earthing (C) Electromagnetic induction (D) Fleming?s right hand rule
  • A
    1-D, 2-A, 3-C, 4-B
    Correct
  • B
    1-A, 2-C, 3-B, 4-D
  • C
    1-B, 2-D, 3-A, 4-C
  • D
    1-C, 2-B, 3-D, 4-A
2
Match the following with correct response. (1) Michael Faraday (2) Fleming (3) Maxwell (4) H.C. Oersted (A) Direction of magnetic lines of force due to straight conductor (B) Electromagnetic induction (C) Electromagnetism (D) Direction of force experienced by a current conductor placed in magnetic
  • A
    1-B, 2-D, 3-A, 4-C
    Correct
  • B
    1-C, 2-B, 3-D, 4-A
  • C
    1-D, 2-A, 3-C, 4-B
  • D
    1-A, 2-C, 3-B, 4-D
3
Match the following with correct response. (1) Colour code of earth wire (2) Dry cell (3) A coil wound into a tightly packed helix(4) Magnets that have temporary magnetism (A) Electromagnet(B) Direct current (C) Green(D) Solenoid
  • A
    1-D, 2-A, 3-C, 4-B
  • B
    1-B, 2-D, 3-A, 4-C
  • C
    1-C, 2-B, 3-D, 4-A
    Correct
  • D
    1-A, 2-C, 3-B, 4-D
4
Match the following with correct response. (1) Dynamo (2) Area around a magnet is which It?s attracting or repelling power can be experienced (3) Device which converts mechanical energy into electrical energy (4) Andre marie ampere (A) Works on electromagnetic principle (B) Generator (C) Magnetism (D) Current
  • A
    1-D, 2-A, 3-C, 4-B
  • B
    1-C, 2-B, 3-D, 4-A
  • C
    1-A, 2-C, 3-B, 4-D
    Correct
  • D
    1-B, 2-D, 3-A, 4-C
5
Match the following with correct response. (1) Appliances with exposed metal parts always need (2) The unidirectional current flow in the circuit (3) The current which changes its direction at regular intervals (4) Device that makes use of the fact that magnetism in presence of electricity produces motion (A) D.C (B) Electric motor (C) A.C (D) Three pin plug
  • A
    1-A, 2-C, 3-B, 4-D
  • B
    1-C, 2-B, 3-D, 4-A
  • C
    1-D, 2-A, 3-C, 4-B
    Correct
  • D
    1-B, 2-D, 3-A, 4-C
6
Match the following with correct response. (1) S.I unit of magnetic field (2) Magnetic field inside the solenoid (3) Compass needle (4) Solenoid (A) Small bar magnet capable of rotating freely (B) Tesla (C) Temporary magnet (D) Uniform
  • A
    1-B, 2-D, 3-A, 4-C
    Correct
  • B
    1-C, 2-B, 3-D, 4-A
  • C
    1-A, 2-C, 3-B, 4-D
  • D
    1-D, 2-A, 3-C, 4-B
7
Match the following with correct response. (1) Iron ore (2) Magnetic flux (3) Electric motor (4) Permanent magnet (A) Loadstone (B) Electrical energy into mechanical energy (C) Number of magnetic lines passing normally through the surface (D) Bar magnet
  • A
    1-B, 2-D, 3-A, 4-C
  • B
    1-A, 2-C, 3-B, 4-D
    Correct
  • C
    1-C, 2-B, 3-D, 4-A
  • D
    1-D, 2-A, 3-C, 4-B
8
Match the following with correct response. (1) Like poles (2) Unlike poles (3) Live wire (4) Neutral wire (A) Attracts (B) Black (C) Red (D) Repels
  • A
    1-B, 2-D, 3-A, 4-C
  • B
    1-C, 2-B, 3-D, 4-A
  • C
    1-D, 2-A, 3-C, 4-B
    Correct
  • D
    1-A, 2-C, 3-B, 4-D
9
The magnetic field at a point due to current carrying conductor is directly proportional to A. Current flowing through the conductor B. Distance of the conductor C. Resistance of the conductor D. None of the above
  • A
    B and C
  • B
    A and B
    Correct
  • C
    A and C
  • D
    A and D
10
Which of the following is incorrect?A. Another name of field lines is lines of space B. Neutral wire is always at zero potential C. Heat loss in DC is less than AC D. Electric fuse is a current generating device
  • A
    All of these
  • B
    A and C
  • C
    B and D
  • D
    A, B and C
    Correct
11
Which of following statement is not correct about electric fuseA. It is always connected in live wireB. It is always connected in the end of the circuit C. Thinner the fuse wire, greater is its current capacity D. Its current capacity must be less than the maximum current
  • A
    All of these
  • B
    A and C
  • C
    B and C
    Correct
  • D
    A and B
12
When the main switch of the house circuit is put off, it disconnects theA. Live wire B. Neutral wire C. Earth wireD. None of the above
  • A
    A and C
  • B
    A and B
    Correct
  • C
    None of these
  • D
    A, B and C
13
Permanent magnets are made of A. Steel B. Alnico C. Nipermag D. Tungsten
  • A
    A and D
  • B
    A and B
  • C
    A, B and D
  • D
    A, B and C
    Correct
14
Which one of the following is correct-A. Fuse wire is an alloy of tin and lead B. Switch is always connected to live wire C. Alternate current is unidirectionalD. Higher is the value of current flow, weaker is the magnetic field
  • A
    All of these
  • B
    A and B
    Correct
  • C
    A and C
  • D
    B and C
15
Magnetic field lines determine
  • A
    Only the relative strength of the magnetic field
  • B
    Both the direction and the relative strength of magnetic field
    Correct
  • C
    The shape of magnetic field
  • D
    Only the direction of magnetic field