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RESISTORS, INDUCTORS AND CAPACITORS

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RESISTORS AND RESISTANCE

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Category: Electrical 5

Ohm’s law states that resistor ‘R’ is directly proportional to

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Category: ELECTRICAL 2

What do the first three-color bands on a resistor indicate?

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Category: Physics Practice Test 5

When the condition R1/R2 = R3/R4 is satisfied, the current in the galvanometer of Wheatstone bridge is

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Category: Electric Circuits

You have to replace 1500 ohms resistor in radio. You have no 1500 ohms resistor but have several 1000 ohms ones. which you would connect

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Category: ELECTRICAL 2

When two 500 ohm 1 watt resistors are connected in parallel, they can dissipate a maximum total power of

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Category: Electrical 5

A 5.0 ohm of resistor has current i=6.0sinωt(A), than power dissipated by the circuit will be

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Category: Electric Circuits

Two resistors are said to be connected in series when

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Category: Electric Circuits

The resistance of a conductor varies inversely as

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Category: ELECTRICAL 2

Which tolerance rating would a high-quality resistor have?

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Category: Electrical 5

Those resistors, which values change with applied voltage and temperature are called

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Category: Electric Circuits

The internal resistance of an ideal voltage source is

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Category: Physics Practice Test 5

The Gold color of the resistance showstolerance up to the

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Category: Electric Circuits

The resistivity of a conductor         with an increase in temperature.

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Category: Physics Practice Test 5

The voltage of a device having resistance 5 Ω and current 4 A will be

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Category: ELECTRICAL 2

If two 10 ohm resistors are connected in series with a 10 volt battery, the power consumption would be:

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Category: Electrical 5

 A 4.0 ohm of resistor has current i=2.5sinωt(A), than voltage across the circuit will be

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Category: ELECTRICAL 2

The total resistance of four 68 ohm resistors wired in parallel is:

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Category: ELECTRICAL 2

What voltage would be needed to supply a current of 200 mA, to operate an electric lamp which has a resistance of 25 ohms?

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Category: ELECTRICAL 2

A resistor with a colour code of brown, black, and red, would have a value of:

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Category: ELECTRICAL 2

What does the fourth color band on a resistor mean?

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Category: ELECTRICAL 2

If a current of 2 amperes flows through a 50-ohm resistor, what is the voltage across the resistor?

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Category: ELECTRICAL 2

The total resistance of resistors connected in series is:

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Category: Physics Practice Test 5

If Current is 0.75 A when a battery of 1.5 V is connected to the wire of 5 m having cross sectional area 2.5 × 10-7 m², the wire will have a resistivity of

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Category: ELECTRICAL 2

Which series combination of resistors would replace a single 120 ohm resistor?

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Category: ELECTRICAL 2

Why do resistors sometimes get hot when in use?

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Category: ELECTRICAL 2

If a carbon resistor’s temperature is increased, what will happen to the resistance?

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Category: ELECTRICAL 2

One advantage of replacing a 50 ohm resistor with a parallel combination of two similarly rated 100 ohm resistors is that the parallel combination will have

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Category: ELECTRICAL 2

Two resistors are in parallel. Resistor A carries twice the current of resistor B, which means that:

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Category: ELECTRICAL 2

In a parallel circuit with a voltage source and several branch resistors, how is the total  current related to the current in the branch resistors?

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Category: Electric Circuits

Which of the following material has nearly zero temperature co-efficient of resistance?

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