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Physics

Chapter 1 - Electric Current, Ohms Law and Kirchhoffs Laws

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Chapter 2 - Magnetic Effects of Electric Current and Measuring Instruments

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Chapter 3 - Electromagnetic Induction and AC Dynamo and Transformer

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Chapter 4 - Alternating Current AC Circuits

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Chapter 5 - Dual Nature of Wave and Particle

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Chapter 6 - Atomic Spectra and X-Rays

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Chapter 7 - Lasers and Principles

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Chapter 8 - Modern Electronics and Semiconductors

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Quiz

Lesson 3 Quiz: Analog Measuring Instruments – Galvanometer, Ammeter, Voltmeter and Ohmmeter

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1.
The mechanical advantage (eta) of an ideal hydraulic press equals all of the following ratios EXCEPT:
Area of the large piston / Area of the small piston (A / a)
Distance moved by the small piston / Distance moved by the large piston (y1 / y2)
Work done by the large piston / Work done on the small piston > 1
Force on the large piston / Force on the small piston (F / f)
2.
The Ideal Gas Law combining all empirical gas relationships is mathematically formulated as:
P / V = n * R * T
P * T = n * R * V
P * V = n * R * T
P * V = m * g * h
3.
Real gases behave most closely to an ideal gas under conditions of:
Very low pressure and high temperature (where intermolecular attraction forces and molecular volumes become negligible)
Extremely high pressure and low temperature
High pressure and near liquefaction point
Zero gravitational acceleration
4.
In a pure capacitor circuit connected to an AC source, the average power consumed over a full cycle is:
C) Zero
D) \(0.5 times V_{max} times I_{max}\)
A) \(V_{text{eff}} times I_{text{eff}}\)
B) \(I_{text{eff}}^2 times X_C\)
5.
In a series R-L-C circuit, when inductive reactance equals capacitive reactance (\(X_L = X_C\)), the total impedance of the circuit is equal to:
C) \(sqrt{R^2 + X_L^2}\)
D) Infinite
B) The ohmic resistance \(R\)
A) Zero
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