Questions asked from Current Electricity in jkbose 12th class examination
Note: Only short and very short answer type questions are asked from this chapter
Short type Questions
Q1. State Ohm's law? Define one ohm of resistance?
Q2. Derive relation between drift velocity and current?
Q3. Define electric power and Electric Energy? Give their units?
Q4. A wire of resistance 1Ω is stretched to double its length. What is the new resistance of the wire?
Q5. Derive Ohm's law by using the basic idea of drift velocity?
Q6. Three resistors of resistance "R" Ohm are provided. How will they connect for obtaining a total resistance 3R/2? Show connection diagrammatically?
Q7. Terminal potential difference is less than e.m.f of a cell. Explain, Why?
Q8. Deduce Wheatstone bridge principle using Kirchhoff's law?
Q9. A resistor is of 3 colored bands Yellow, Red and Blue colors respectively on it. Find value of resistance?
Q10. State and explain Kirchhoff's laws?
Q11. Define Drift Velocity and relaxation time. Obtain a relation between them?
All Chapters:
JKBOSE 12th class Physics Papers of last 10 years
Very Short type Questions
Q1. How does resistivity of a conductor vary with temperature?
Q2. What are the factors on which the resistance of a conductor depends? Give the corresponding relation?
Q3. Explain the principle of Potentiometer?
Q4. What are the factors on which the resistance e.m.f of a cell depends?
Q5. Explain how resistance of a conductor varies with temperature?
Q6. Calculate the resistivity of the material of a wire of length 1.0 m, diameter 0.4 m & having a resistance of 2Ω?
Q7. A potential difference of 10 V is applied across a conductor having resistance 1000Ω. Find the number of electrons flowing through the conductor in 5 minutes?
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