Home
Class 12
PHYSICS
Assertion :- Voltage across L (see figur...

Assertion :- Voltage across L (see figure) at t=0 is E
Reason:- Because `E=V_(L)+V_(R)` and at t=0, i=0

A

If the Assertion & Reason are True & the Reason is a correct explanation of the Assertion .

B

If both Assertion & Reason are True & the Reason is not a correct explanation of the Assertion.

C

If Assertion is True but the Reason is Fasle.

D

If both Assertion and Reason are False .

Text Solution

Verified by Experts

The correct Answer is:
a
Promotional Banner

Topper's Solved these Questions

  • ELECTRO MAGNETIC INDUCTION

    MOTION|Exercise EXERCISE-4| Section A (Prevous Years Problems )|28 Videos

  • ELECTRO MAGNETIC INDUCTION

    MOTION|Exercise EXERCISE-4| Section B (Prevous Years Problems )|29 Videos

  • ELECTRO MAGNETIC INDUCTION

    MOTION|Exercise EXERCISE-2 (Objective problems (Analytical questions))|70 Videos

  • Electrical Instrument

    MOTION|Exercise EXERCISE -3|16 Videos

  • ELECTRO MAGNETIC WAVES

    MOTION|Exercise EXERCISE - 3 (SECTION - B)|8 Videos

Similar Questions

Explore conceptually related problems

Assertion: In y = A sin (omega t - kx),(omega t - kx) is dimensionless. Reason: Because dimension of omega = [M^(0)L^(0)T] .

Assertion: In series, L-C-R voltage across capacitor is always less than the applied voltage. Reason: In series L-C-R circuit, V = sqrt((V^(2) + (V_(L)^(2)-V_(C)^(2)))

In an LCR series ac circuit the voltage across L,C and R are V_(1), V_(2) and V_(3) respectively The voltage of the source is .

In an LCR series circuit the voltages across R,L and C at resonance are 40 V and 60V respectively the applied voltage is .

Assertion : The switch S shown in the figure is closed at t = 0 . Initial current flowing through battery is (E)/(R + r) Reason : Initially capacitor was uncharged, so resistance offered by capacitor at t = 0 is zero

An LR circuit has L = 1.0 H R =20 Omega . It is connected across an emf of 2.0 V at t=0 . Find di/dt at (a) t =100ms, (b) t =200 ms and (c )t = 1.0 s .

A constant voltage is applied to a series R-L circuit by closing the switch. The voltage across inductor (L=2H) is 20V at t=0 and drops of 5V and 20 ms . The value of R in Omega is

In the figure shown i=10e^(-4t) A. Find V_L and V_(ab)

MOTION-ELECTRO MAGNETIC INDUCTION-EXERCISE-3 (Assertion & Reasoning)
  1. Assertion :- Whenever magnetic flux linked with the coil changes with ...

    Text Solution

    |

  2. Assertion :- Magnetic flux through the wood ring changes with respect ...

    Text Solution

    |

  3. Assertion :- When a bar magnet moves along the axis of conducting coil...

    Text Solution

    |

  4. Assertion :- If magnetic flux through any circuit is changes then an e...

    Text Solution

    |

  5. Assertion :- The mutual inductance M between two coils of self inducta...

    Text Solution

    |

  6. Assertion :- Voltage across L (see figure) at t=0 is E Reason:- Beca...

    Text Solution

    |

  7. Assertion :- At any instant , if the current through an inductor is ze...

    Text Solution

    |

  8. Assertion :- Due to high inductance of any coil the current attains it...

    Text Solution

    |

  9. Assertion :- A current is flowing through a coil with 5 volt battery ....

    Text Solution

    |

  10. Assertion :- Unlike charges are projected in opposite direction in tra...

    Text Solution

    |

  11. Assertion :- Faraday's copper disc generator is based on dynamic elect...

    Text Solution

    |

  12. Assertion :- When a conducting rod moves in uniform transverse magnet...

    Text Solution

    |

  13. Assertion :- If s steel core is used in a transformer in place of sof...

    Text Solution

    |

  14. Electromagnets are made of soft iron because soft iron has

    Text Solution

    |

  15. Assertion :- A thin aluminum disc, spinning freely about a central piv...

    Text Solution

    |

  16. Assertion : We use a thick wire in the secondary of a step down transf...

    Text Solution

    |

  17. Assertion: The quantity L//R possesses dimensions of time. Reason: T...

    Text Solution

    |

  18. Assertion : An emf vec(E) is induced in a closed loop where magnetic f...

    Text Solution

    |