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The deflecting torques of an ammeter varies as the square of the current passing through it. If a current of 15A produces a deflection of 30°, The deflection of a current of 20 A when instrument is spring controlled will be _____________ (in degrees).
    Correct answer is between '53.3,53.4'. Can you explain this answer?
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    The deflecting torques of an ammeter varies as the square of the curre...
    Td = KdI2
    for spring control Tc = Kcθ

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    The deflecting torques of an ammeter varies as the square of the curre...
    The deflecting torque of an ammeter varies as the square of the current passing through it. This means that if the current passing through the ammeter is doubled, the deflecting torque will be four times as large.

    In this case, we are given that a current of 15A produces a deflection of 30. Let's call this deflection D1. We want to find the current that will produce a deflection of 60, which we'll call D2.

    Since the deflecting torque varies as the square of the current, we can set up the following equation:

    (D2/D1)^2 = (I2/I1)^2

    Plugging in the values we know:

    (60/30)^2 = (I2/15)^2

    Simplifying:

    2^2 = (I2/15)^2

    4 = (I2/15)^2

    Taking the square root of both sides:

    2 = I2/15

    Multiplying both sides by 15:

    30 = I2

    So, a current of 30A will produce a deflection of 60.
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    The deflecting torques of an ammeter varies as the square of the current passing through it. If a current of 15A produces a deflection of 30°, The deflection of a current of 20 A when instrument is spring controlled will be _____________ (in degrees).Correct answer is between '53.3,53.4'. Can you explain this answer?
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    The deflecting torques of an ammeter varies as the square of the current passing through it. If a current of 15A produces a deflection of 30°, The deflection of a current of 20 A when instrument is spring controlled will be _____________ (in degrees).Correct answer is between '53.3,53.4'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about The deflecting torques of an ammeter varies as the square of the current passing through it. If a current of 15A produces a deflection of 30°, The deflection of a current of 20 A when instrument is spring controlled will be _____________ (in degrees).Correct answer is between '53.3,53.4'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The deflecting torques of an ammeter varies as the square of the current passing through it. If a current of 15A produces a deflection of 30°, The deflection of a current of 20 A when instrument is spring controlled will be _____________ (in degrees).Correct answer is between '53.3,53.4'. Can you explain this answer?.
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