electric flux
electric flux density
magnetic flux density
electric charge density
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Answer is Wrong!
Electrostatics
2. Which of the following statements is incorrect ?
The leakage resistance of ceramic capacitors is generally high
The stored energy in a capacitor decreases with reduction in value of capacitance
The stored energy in a capacitor increases with applied voltage
A wire cable has distributed capacitance between the conductors
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Detailed SolutionWhich of the following statements is incorrect ?
3. The electrostatic force between two charges of one coulomb each and placed at a distance of 0.5 m will be
36 x 10 fa
36 x 107 N
36 x 108 N
36 x 109 N
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Answer is Wrong!
4. If a 6 uF capacitor is charged to 200 V, the charge in coulombs will be
800 uC
900 uC
1200 uC
1600 uC
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Answer is Wrong!
Detailed SolutionIf a 6 uF capacitor is charged to 200 V, the charge in coulombs will be
5. Voltage applied across a ceramic dielectric produces an electrolytic field 100 times greater than air. What will be the value of dielectric constant ?
6. _______ field is associated with the capacitor.
Electric
Magnetic
Both (A) and (B)
None of the above
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Detailed Solution_______ field is associated with the capacitor.
7. Which of the following capacitors has relatively shorter shelf life ?
Mica capacitor
Electrolytic capacitor
Ceramic capacitor
Paper capacitor
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Detailed SolutionWhich of the following capacitors has relatively shorter shelf life ?
8. What will happen to an insulating medium if voltage more than the breakdown voltage is applied on it ?
It will become magnetic
It will melt
It will get punctured or cracked
Its molecular structure will get changed
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9. The ability of charged bodies to exert force on 6ne another is attributed to the existence of
electrons
protons
neutrons
electric field
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10. If an ohmmeter reading immediately goes practically to zero and stays there, capacitor is
Charged
Short-circuited
Lossy
Satisfactory
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Answer is Wrong!