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An electric charge in uniform motion produces:
Answer: C. Both electric and magnetic fields An electric charge in uniform motion produces both electric and magnetic fields.
Answer: C. Both electric and magnetic fields
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Electromagnetic waves are produced due to:
Answer: A. An accelerating charge Electromagnetic waves are produced due to an accelerating charge.
Answer: A. An accelerating charge
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The speed of electromagnetic waves is independent of:
Answer: C. Intensity The speed of electromagnetic waves is independent of intensity.
Answer: C. Intensity
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The S. I unit of inductance, henry can be written as
Answer: C. Joule per ampere² The S.I.unit of inductance, henry can be written as joule per ampere².
Answer: C. Joule per ampere²
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In an A.C circuit, for a capacitor, its reactance
Answer:D. Decrease In an A.C circuit, for a capacitor, its reactance decrease.
Answer:D. Decrease
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The current in resistance R at resonance is
Answer: C. Maximum but finite The current in resistance R at resonance is maximum but finite.
Answer: C. Maximum but finite
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In inductor may store energy in
Answer: C. Its magnetic field An inductor may store energy in its magnetic field.
Answer: C. Its magnetic field
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Which of the following based upon the law of conservation of energy?
Answer: A. Lenz's law Lenz's law is based upon the law of conservation of energy.
Answer: A. Lenz’s law
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A transformer core is laminated to reduce
Answer: A. Iron loss A transformer core is laminated to reduce iron loss
Answer: A. Iron loss
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In a transformer, electric power is
Answer: C. Transformed In transformer, electric power is transformed.
Answer: C. Transformed
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