NEET Physics Alternating Current Instantaneous, Peak, Rms and Average Value Of A.C MCQs

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    NEET Questions / Physics / Alternating Current / Instantaneous, Peak, Rms and Average Value Of A.C

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    Instantaneous, Peak, Rms and Average Value Of A.C
    A.C Across R-L, R-C, L-C And L-C-R Circuit
    Resontant Frequency, L-C Oscillations
    Choke Coil, Transformer
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    1.

    If the RMS current in a circuit is 5A, what is the peak current?

    A

    7.07A

    B

    5A

    C

    2.5A

    D

    10A

    Question Tags

    πŸ“š Subject:Physics
    πŸ“‘ Chapter:Alternating Current
    🎯Topic:Instantaneous, Peak, Rms and Average Value Of A.C
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Easy
    ⚑ Time Required :0.5 mins
    πŸ”„Ncert Concepts :Alternating Current, RMS Value, Peak Value
    2.

    The instantaneous value of an alternating current is given by i=5sin(100Ο€t)i = 5sin(100\pi t). What is its peak value?

    A

    5A

    B

    100A

    C

    500A

    D

    2.5A

    Question Tags

    πŸ“š Subject:Physics
    πŸ“‘ Chapter:Alternating Current
    🎯Topic:Instantaneous, Peak, Rms and Average Value Of A.C
    πŸŽ“ Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚑ Time Required :1 mins
    πŸ”„Ncert Concepts :Instantaneous Value, Peak Value, AC Current
    3.

    If the peak voltage of an AC source is doubled, what happens to the RMS value of the voltage?

    A

    It doubles

    B

    It quadruples

    C

    It remains the same

    D

    It halves

    Question Tags

    πŸ“š Subject:Physics
    πŸ“‘ Chapter:Alternating Current
    🎯Topic:Instantaneous, Peak, Rms and Average Value Of A.C
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Medium
    ⚑ Time Required :1 mins
    πŸ”„Ncert Concepts :RMS Value, Peak Value, AC Voltage
    4.

    The r.m.s value of an a.c. of 50 Hz is 10 A. the time taken by the alternating current in reaching from zero to maximum value and the peak value of current will be

    A

    2imes10βˆ’2secβ€Šβ€Šβ€Šβ€Šandβ€Šβ€Šβ€Š14.14  A2 imes {10^{ - 2}}{\rm{sec}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\rm{14}}.{\rm{14}}\,\,{\rm{A}}

    B

    1imes10βˆ’2sec    and    7.07 A1 imes {10^{ - 2}}{\rm{sec}}\,\,\,\,{\rm{and}}\,\,\,\,{\rm{7}}.{\rm{07}}\,{\rm{A}}

    C

    5imes10βˆ’3sec   and   7.07  A5 imes {10^{ - 3}}{\rm{sec}}\,\,\,{\rm{and}}\,\,\,{\rm{7}}.{\rm{07}}\,\,{\rm{A}}

    D

    5imes10βˆ’3sec  and   14.14  A5 imes {10^{ - 3}}{\rm{sec}}\,\,{\rm{and}}\,\,\,{\rm{14}}.{\rm{14}}\,\,{\rm{A}}

    Question Tags

    πŸ“š Subject:Physics
    πŸ“‘ Chapter:Alternating Current
    🎯Topic:Instantaneous, Peak, Rms and Average Value Of A.C
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Medium
    ⚑ Time Required :2 mins
    πŸ”„Ncert Concepts :RMS value, frequency, time period, peak value of AC
    5.

    The peak value of A.C. is 22A.2\sqrt 2 {\rm{A}}{\rm{.}} It’s apparent value will be

    A

    1A

    B

    2A

    C

    4A

    D

    zero

    Question Tags

    πŸ“š Subject:Physics
    πŸ“‘ Chapter:Alternating Current
    🎯Topic:Instantaneous, Peak, Rms and Average Value Of A.C
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Medium
    ⚑ Time Required :1 mins
    πŸ”„Ncert Concepts :RMS value, Peak value, AC current
    6.

    The r.m.s value of an a.c. of 50 Hz is 10 A. the time taken by the alternating current in reaching from zero to maximum value and the peak value of current will be

    A

    2imes10βˆ’2secβ€Šβ€Šβ€Šβ€Šandβ€Šβ€Šβ€Š14.14  A2 imes {10^{ - 2}}{\rm{sec}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\rm{and}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\rm{14}}.{\rm{14}}\,\,{\rm{A}}

    B

    1imes10βˆ’2sec    and    7.07 A1 imes {10^{ - 2}}{\rm{sec}}\,\,\,\,{\rm{and}}\,\,\,\,{\rm{7}}.{\rm{07}}\,{\rm{A}}

    C

    5imes10βˆ’3sec   and   7.07  A5 imes {10^{ - 3}}{\rm{sec}}\,\,\,{\rm{and}}\,\,\,{\rm{7}}.{\rm{07}}\,\,{\rm{A}}

    D

    5imes10βˆ’3sec  and   14.14  A5 imes {10^{ - 3}}{\rm{sec}}\,\,{\rm{and}}\,\,\,{\rm{14}}.{\rm{14}}\,\,{\rm{A}}

    Question Tags

    πŸ“š Subject:Physics
    πŸ“‘ Chapter:Alternating Current
    🎯Topic:Instantaneous, Peak, Rms and Average Value Of A.C
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Medium
    ⚑ Time Required :3 mins
    πŸ”„Ncert Concepts :RMS value, frequency, time period, peak value of AC
    7.

    The peak value of A.C. is 22A.2\sqrt 2 {\rm{A}}{\rm{.}} It’s apparent value will be

    A

    1A

    B

    2A

    C

    4A

    D

    zero

    Question Tags

    πŸ“š Subject:Physics
    πŸ“‘ Chapter:Alternating Current
    🎯Topic:Instantaneous, Peak, Rms and Average Value Of A.C
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Medium
    ⚑ Time Required :2 mins
    πŸ”„Ncert Concepts :RMS value of AC, Peak value of AC

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