Question

When is a device called an Ohmic device? A. No device is an Ohmic device. B....

When is a device called an Ohmic device?

A.

No device is an Ohmic device.
B.

Only when the device obeys Ohm's Law and has a non-linear relationship between potential and current.
C.

Only when the device obeys Ohm's Law and has a linear relationship between potential and current.
D.

All devices are Ohmic devices.

Using Ohm's Law, keeping the resistance constant and increasing the applied voltage

A.

increases the current.
B.

stops the current.
C.

decreases the current.
D.

does nothing.

How do capacitors in parallel combine?

A.

1/ceq = 1/c1 + 1/c2 + ... + 1/cn
B.

ceq = 1/c1 + 1/c2 + ... + 1/cn
C.

ceq = c1 + c2 + ... +cn
D.

1/ceq = c1 + c2 + ... + cn
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Homework Answers

Answer #1

Sol:Q1. Ohmic device means the device which obeys Ohm's Law and has a linear relationship between potential and current. Hence option C is correct.

Q2. According to ohm's law, if resistance of a conductor is constant then current flowing through conductor is directly proportional to the voltage applied across it. Hence option A is correct.

Q3. The net capacitance of parallel combination of capacitor is given as

Hence option D is correct.

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