Gamma Question Bank for Medical Physics>Chapter 18 - Current Electricity>Assignment>Q 26

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Three identical resistors $R_{1} = R_{2} = R_{3}$ are connected as shown to a battery of constant $e . m . f .$ The power dissipated is

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Important Questions on Current Electricity

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Gamma Question Bank for Medical Physics>Chapter 18 - Current Electricity>Assignment>Q 27

Four equal resistance dissipated

5 W

of power together when connected in series to a battery of negligible internal resistance. The total power dissipated in these resistance when connected in parallel across the same battery would be

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Gamma Question Bank for Medical Physics>Chapter 18 - Current Electricity>Assignment>Q 28

A cell sends a current through a resistance

R

for time

t .

Now the same cell sends current through another resistance

r

for the same time. If same amount of heat is developed in both the resistance, then the internal resistance of cell is

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Gamma Question Bank for Medical Physics>Chapter 18 - Current Electricity>Assignment>Q 29

According to this diagram, the potential difference across the terminals is (internal resistance of cell $= r)$

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Gamma Question Bank for Medical Physics>Chapter 18 - Current Electricity>Assignment>Q 30

Reading of an ideal voltmeter in the circuit below is

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Gamma Question Bank for Medical Physics>Chapter 18 - Current Electricity>Assignment>Q 31

The value of current through $2 Ω$ resistor is

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Gamma Question Bank for Medical Physics>Chapter 18 - Current Electricity>Assignment>Q 32

The reading of the ammeter in the circuit below is

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Gamma Question Bank for Medical Physics>Chapter 18 - Current Electricity>Assignment>Q 33

The ammeter reading in the circuit below is

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Gamma Question Bank for Medical Physics>Chapter 18 - Current Electricity>Assignment>Q 34

Thousand cells of same emf

E

and same internal resistance

r

are connected in series in same order without an external resistance. The potential drop across

399

cells is found to be