Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 3 - Current Electricity>Exercise>Q 39

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In Wheatstone's bridge, $P = 9 ohm$ , $Q = 11 ohm$ , $R = 4 ohm$ and $S = 6 ohm$ . How much resistance must be put in parallel to resistance $S$ to balance the bridge?

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Important Questions on Current Electricity

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Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 3 - Current Electricity>Exercise>Q 40

In the circuit given, the current relation to a balanced Wheatstone's bridge is:

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Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 3 - Current Electricity>Exercise>Q 41

Find equivalent resistance between X and Y

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Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 3 - Current Electricity>Exercise>Q 42

In Wheatstone bridge, three resistors

P, Q

and

R

are connected in three arms in order and fourth arm is is formed by two resistors

s_{1}

and

s_{2}

connected in parallel. The condition for bridge to be balanced is

\frac{P}{Q} =

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Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 3 - Current Electricity>Exercise>Q 43

In a Wheatstone bridge,

P = 90 Ω, Q = 110 Ω, R = 40 Ω

and

S = 60 Ω

and a cell of

4 V

e.m.f., then the potential difference between the diagonal along which a galvanometer is connected is

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Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 3 - Current Electricity>Exercise>Q 44

State the relation among the resistances of the arms of a balanced Wheatstone’s bridge.

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Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 3 - Current Electricity>Exercise>Q 45

Obtain the relation

\frac{R_{1}}{R_{2}} = \frac{R_{3}}{R_{4}}

for a Wheatstone’s bridge. The symbols have their standard meanings.

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Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 3 - Current Electricity>Exercise>Q 46

Obtain the balancing condition for the Wheatstone bridge arrangement as shown in figure below :
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Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 3 - Current Electricity>Exercise>Q 47

Draw circuit diagram of a balanced Wheatstone bridge and obtain the relationship among the resistors used. Write its applications.