Home
Class 12
PHYSICS
"In step-down transformer output current...

"In step-down transformer output current decreases". This statement is true or false ?

Promotional Banner

Topper's Solved these Questions

  • ALTERNATING CURRENTS

    KUMAR PRAKASHAN|Exercise SECTION-A (QUESTIONS-ANSWERS)|35 Videos

  • ALTERNATING CURRENTS

    KUMAR PRAKASHAN|Exercise SECTION B NUMERICALS (TEXTUAL ILLUSTRATIONS)|33 Videos

  • ATOMS

    KUMAR PRAKASHAN|Exercise Section-D -MCQs asked in GUJCET / Board Exam|34 Videos

Similar Questions

Explore conceptually related problems

"In a ideal transformer power may increase or decrease".Such statement is true or false?

In a step-down transformer ....... increases.

By increasing current sensitivity, voltage sensitivity is also increase. This statement is true or false.

The magnitude of effective capacitance in series connection of capacitors increases. Is this statement true or false ?

The unifrom circular motion of an object is a constant acelerated motion, state whether this statement is true or false .

"Zero speed and non-zero velocity". Is this statement true or false ? Explain.

Write the component statements of the following compound statements and check whether the compound statement is true or false. 24 is a multiple of 4 and 6.

Write the component statements of the following compound statements and check whether the compound statement is true or false. 57 is divisible by 2 or 3.

Identify the type of Or used in the following statements and check whether the statements are true or false: sqrt(2) is a rational number or an irrational number.

Identify the type of Or used in the following statements and check whether the statements are true or false: A rectangle isa quadrilateral or a 5-sided polygon.

KUMAR PRAKASHAN-ALTERNATING CURRENTS -SECTION-D MCQs (COMPETITIVE EXAMS)
  1. "In step-down transformer output current decreases". This statement is...

    Text Solution

    |

  2. Power factor of AC series circuit having resistance R and inductor L h...

    Text Solution

    |

  3. A transformer has 140 turns in the primary and 280 turns in the second...

    Text Solution

    |

  4. In an oscillating L-C circuit the maximum charge on the capacitor is Q...

    Text Solution

    |

  5. Alternating current can not be measured by D.C. ammeter because ………

    Text Solution

    |

  6. In a L-C-R circuit capacitance is changed from C to 2C. For the resona...

    Text Solution

    |

  7. In a L-C-R series A.C. circuit, the voltage across each of the compone...

    Text Solution

    |

  8. The power factor of A.C. circuit of resistance 12Omega and impedance ...

    Text Solution

    |

  9. The phase difference between the alternating current and emf is pi/2 r...

    Text Solution

    |

  10. In L-C-R series circuit at resonance p.d. between two ends of resistor...

    Text Solution

    |

  11. In an A.C. generator, a coil with N turns, all the same area A and tot...

    Text Solution

    |

  12. In A.C. circuit, when E = E0 sin omegat supply applied, current is obt...

    Text Solution

    |

  13. An inductor (L = 0.03 H) and a resistor (R = 0.15 kOmega) are connecte...

    Text Solution

    |

  14. An LCR circuit is equivalent to a damped pendulum. In an LCR circuit t...

    Text Solution

    |

  15. An arc lamp requires a direct current of 10 A at 80 V to function. If ...

    Text Solution

    |

  16. For an RLC circuit driven with voltage of amplitude vm and frequency ...

    Text Solution

    |

  17. An emf of 20 V is applied at time t = 0 to a circuit containing in ser...

    Text Solution

    |

  18. An inductor of inductance L and resistance R is connected of A.C. circ...

    Text Solution

    |

  19. In an A.C circuit the current...

    Text Solution

    |

  20. A primary of transformer has 100 turns an secondary has 500 turns. If ...

    Text Solution

    |

  21. If in an A.C. circuit voltage V and current is then the power dissipat...

    Text Solution

    |