NAVY FMT PHYSICS QUIZ 5
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#1. Dimension of work is same as that of:
#2. The dot product of two vectors is maximum when angle between them is:
#3. Weight of a body in an elevator accelerating downwards with ‘g’ is:
#4. Work done by centripetal force is always:
#5. Kinetic energy of a body becomes 4 times when its momentum is:
#6. Escape velocity depends on:
#7. Stress is defined as force per unit:
#8. Terminal velocity of a sphere falling in viscous medium is proportional to square of its:
#9. When a wave passes from one medium to another, which property remains unchanged?
#10. Beat phenomenon occurs due to interference of sound waves of slightly different:
#11. Speed of light is maximum in:
#12. Blue color of the sky is due to:
#13. Critical angle for glass-air interface is approximately:
#14. Magnifying glass consists of a simple:
#15. Unit of thermal conductivity is:
#16. Molar specific heat at constant pressure (Cp) is always:
#17. Value of gas constant R in SI units is:
#18. Coulomb’s constant k depends upon:
#19. Electric potential at infinite distance from a point charge is assumed to be:
#20. Kilowatt-hour is the unit of:
#21. Specific resistance (resistivity) of a wire depends upon:
#22. Magnetic field lines form:
#23. Unit of self inductance is:
#24. Peak value of AC voltage is 100V, its effective (RMS) value is:
#25. Mass-energy equivalence relation E = mc^2 was proposed by:
#26. Continuous X-ray spectrum is due to:
#27. Half life of Radium-226 is approximately:
#28. Nuclear fission of Uranium-235 releases energy of about:
#29. Main constituent of natural gas is:
#30. Symbol of NOR gate is OR gate followed by a:
FMT PHYSICS · PART 5
Physics Quiz 5: Electricity and Magnetism
Revise electric current, voltage, resistance, circuits, and the basic properties of magnets.
Explore Electricity and Magnetism
Welcome to Pak Navy FMT Physics Quiz 5, a practice resource covering basic electricity and magnetism. This article is intended for students preparing for the Pakistan Navy Female Medical Technician initial test.
Electricity is important in everyday devices such as lights, fans, and medical equipment. Understanding voltage, current, and resistance helps explain how electric circuits work. Magnetism introduces another important area of physics, including magnetic fields and the behaviour of magnets.
Topics to Study
- Electric charge and electric current
- Voltage and resistance
- Ohm’s law
- Series and parallel circuits
- Magnets and magnetic fields
Current, Voltage and Resistance
Electric current is the rate of flow of electric charge. Its SI unit is the ampere (A). Voltage is the electric potential difference between two points and is measured in volts (V). Resistance describes how strongly a component opposes current and is measured in ohms (Ω).
Ohm’s Law
For an ohmic conductor under constant physical conditions, current is directly proportional to voltage.
V = IR
V = voltage, I = current, and R = resistance.
A Simple Circuit Calculation
Suppose a resistor of 4 Ω is connected across a 12 V supply. Using Ohm’s law:
I = V ÷ R = 12 ÷ 4 = 3 A
The current is 3 amperes under the stated conditions.
Series and Parallel Circuits
Series Circuit
Components are connected along a single path. The same current flows through each component in an ideal series circuit.
Parallel Circuit
Components are connected across the same two nodes. Each branch has the same voltage across it.
Introduction to Magnetism
A magnet produces a magnetic field around it. Every ordinary bar magnet has a north pole and a south pole. Like poles repel one another, while unlike poles attract.
Magnetic fields can be represented by field lines. Outside a bar magnet, these lines are conventionally drawn from the north pole toward the south pole. The field is generally stronger where the field lines are closer together.
Important Facts to Remember
- Current is measured in amperes.
- Voltage is measured in volts.
- Resistance is measured in ohms.
- Ohm’s law is written as V = IR.
- Like magnetic poles repel; unlike poles attract.
Tips for the Physics Quiz
For numerical MCQs, write down the known values before applying Ohm’s law. Check whether the question asks for voltage, current, or resistance, and rearrange the formula accordingly. For conceptual questions, review how current behaves in series circuits and how voltage behaves in parallel branches.
Finish by revising the properties of magnets and the meaning of a magnetic field. These short review sessions can help you remember key facts more effectively.
Your Final Revision Challenge
Can you state Ohm’s law, name the units of current and resistance, and explain the difference between a series and a parallel circuit?
Practice advice: Attempt the MCQs first, then review the explanations for any incorrect answers.
Educational notice: This independent educational resource is not an official Pakistan Navy FMT examination paper. Actual test questions, syllabus coverage, and timing may differ.