CBSE Class 12 Physics Revision Assignment Set I
Q1. What is the equivalent resistance between points A and B of the circuit shown. Q2.If each resistance in the circuit is of 5Ω each then calculate effective resistance between points A and B. If a battery of 2V, 1Ω internal resistance is connected across points A and B then…
CBSE Class 12 Physics Revision Assignment Set H
1. Define resistivity. State its unit. 2. A wire is not connected to a battery. Does it possess charge? Do electrons in it have velocity? This wire is now connected to a battery, do electrons have velocity? What is the direction of their velocity?What is the direction of…
CBSE Class 12 Physics Revision Assignment Set F
Q1. When a parallel beam of light rays fall on a rough surface, it scatters in all directions. Does it mean that the beam does not obey laws of reflection? Explain briefly. Q2. You can see clearly in a room during day time even when no sunbeam is reaching the room.…
CBSE Class 12 Physics Revision Assignment Set E
Q.1 An electrostatic field line cannot be discontinuous. Why? Q.2 Fig. shows three point charges +2q, -q and +3q. Two charges +2q and –q are enclosed within the surface ‘S’. What is the electric flux due to this configuration through the surface S? Q.3 A parallel plate…
CBSE Class 12 Physics Revision Assignment Set D
1. What are the elements of earth magnetic field at a place? 2. a) Differentiate between dia, para, ferro magnetic substance with two examples each. b) Draw susceptibility versus temperature graph. 3. What is displacement current? Derive its value from Maxwell – Ampere…
CBSE Class 12 Physics Revision Assignment Set A
1. State Coulomb’s law and write its vector form. 2. Calculate no. of electrons that will form 1 coulomb charge. (e- = 1.6X 10-19C) 3. How will you charge a neutral body with a negative charge if you have a positively charged body? What is the name…
CBSE Class 12 Physics Optics Formulae Assignment
CBSE Class 12 Physics Optics Formulae Assignment. Students are advised to refer to the attached assignments and practise them regularly. This will help them to identify their weak areas and will help them to score better in examination. Parents should download and give the…
CBSE Class 12 Physics Nuclei Assignment
Important Questions for NCERT Class 12 Physics Nuclei Question. Nucleus of an atom whose atomic mass is 24 consists of (a) 11 electrons, 11 protons and 13 neutrons (b) 11 electrons, 13 protons and 11 neutrons (c) 11 protons and 13 neutrons (d) 11 protons and…
CBSE Class 12 Physics Moving Charges And Magnetism Assignment
1. A narrow stream of protons and deuterons, having the same momentum values, enter a region of uniform magnetic field directed perpendicular to their common direction of motion. What would be the ratio of the radii of the circular paths described by the protons and…
CBSE Class 12 Physics Electrostatistics Assignment
ELECTRIC POTENTIAL & CAPACITORS Question. A capacitor of capacitance C has a charge Q and stored energy W. If the charge is increased to 2Q, the stored energy will be (a) 𝑊/4 (b) 𝑊/2 (c) 2W (d) 4W Answer. D Question. A battery is used to charge a capacitor till the…
CBSE Class 12 Physics Electric Potential and Capacitance Assignment
Electric Potential and Capacitance MCQ Questions with Answers Class 12 Physics Question- Two capacitors of capacitances 4.0 μF and 6.0 μ F are connected in series with a battery of 20 V. Find the energy supplied by the battery. a) 960 μ J b) 840 μ J c) 689 μ J…
CBSE Class 12 Physics Electric Charges And Field Assignment
1 MARK QUESTIONS Question. Ordinary rubber is an insulator. But the special rubber tyres of aircrafts are made slightly conducting. Why is this necessary? Answer. During landing the tyres of aircrafts may get highly charged due to friction between tyres and the air strip…
CBSE Class 12 Physics Current Electricity Assignment Set D
UNIT 2 CURRENT ELECTRICITY Important Questions for NCERT Class 12 Physics Current Electricity Question. An electric bulb is rated 60 W, 220 V. The resistance of its filament is (a) 870 W (b) 780 W (c) 708 W (d) 807 W Answer: D Question. A…
CBSE Class 12 Physics Current Electricity Assignment Set C
CURRENT ELECTRICITY (PHYSICS XII) 1. In an experiment on meter bridge, if the balancing length AC is x, what would be its value when the radius of the meter bridge wire AB is doubled? 2. Two conducting wires X and Y of same diameter but different materials are joined…
CBSE Class 12 Physics Frequently asked questions in examinations
FREQUENTLY ASKED QUESTIONS UNIT I ELECTROSTATICS 1) Force of attraction between two point charges placed at a distance of‘d’ is ‘F’. What distance apart they are kept in the same medium, so that, the force between them is ‘F/3’? 2) Define electric field intensity. Write its…