Practice Wheatstone Bridge (2.11) - Current Electricity - ICSE 12 Physics

Practice: Wheatstone Bridge

Lesson 2.11Current Electricity

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8 questions

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6 sample questions

Question 1.
What does a Wheatstone Bridge measure?
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Think about what happens in a circuit with resistors.
Question 2.
What indicates that a Wheatstone Bridge is balanced?
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What does it mean when there is zero current?
3Question 3.
What is the primary use of a Wheatstone Bridge?
- To measure voltage
- To measure unknown resistance
- To measure current
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Consider the function of the bridge circuit.
4Question 4.
True or False: A Wheatstone Bridge can be used for measuring current.
- True
- False
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Think about the types of quantities the bridge is measuring.
Question 5.
A Wheatstone Bridge consists of R1 = 120Ω, R2 = 75Ω, and R3 = 30Ω. Calculate the value of R4 when balanced and explain the implications of this balance for resistance measurements.
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Use cross multiplication for the ratio.
Question 6.
In an experiment, a Wheatstone Bridge's known resistors are adjusted, yielding a balanced state when R1 = 10Ω and R2 = 30Ω along with R3 being unknown. Determine R4 if R3 is found to be 15Ω and analyze its significance in a practical setting.
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Think about how the ratio reflects the respective resistance values.

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