Physics question and answers for December 18, 2023
- Q W 2 resistance of circuit shown in figure between points A an 6 10 Q A WWW 10 Q Cowww 10 Q 10 Q ww www 10 Q O 2...
- Q What is the drift velocity of electrons in a silver wire of length 1m having cross sectional area 9 5 x 10 7 m and carrying a current of 10A...
- Q A potention is potential gradient across the potentiometer wire k volts cm and the ammeter present in the circuit reads 1 0 A when two way key is switched off...
- Q Initially the spheres A and B are at potentials V and VB When B is earthed the potential of A will be B 1 VA 3 2VA A a b...
- Q 3V 252 For the resistance network shown in the figure choose the correct option s JEE 2012 Paper 1 4 12 292 S 252 49 1 wwww 12 wwwww 422...
- Q A ring is made of wire having a resistance Ro 120 Find the points A and B as shown in the figure at which a current carrying conductor should be...
- Q 4 Calculate the current in a wire if 700 C of charge passes through it in 15 minutes 5 Electric potential at a point in an electric field is 05...
- Q If dissipation of same energy takes place in all three resistors R R and R3 then their value must be related as 1 R R R3 2 R R R3...
- Q 8 The dimensions of a block are 1 cm x 1cm x 100 cm If the specific resistance of the material is 3x 10 72m then the resistance between two...
- Q D T Find the equivalent resistance of the circuit given 252 ww 192 B 602 D figure between the following point 492 www E 2023
- Q 26 A body cools from a temperature 37 to 27 in 10 minutes The room temperature is T Assume that Newton s law of cooling is applicable The temperature of...
- Q 12 resistors arranged symmetrically in shape of bipyramid ABCDEF Here ABCD is a square Point E point F and center of square are in the same straight line perpendicular to...
- Q In the circuit shown the battery the ammeter and the voltmeter are ideal Pick the correct choice s A B C D Power supplied by battery is 72 W Rate...
- Q 130 The power dissipated in 3 92 resistance in the following circuit is a I W c 0 25 W 45 V 102 252 312 b d 69 452 40...
- Q Da Q10 alculate the heat develled when 3 A Corrient through an electric Iron box designed to work an 230v
- Q A battery of 24 cells each of EMF 1 4 V and internal resistance 2 2 is to be connected so as to send maximum current through a resistor of...
- Q 57 In a network as shown in the figure the potential difference across the resistance 2R is the cell has an emf E with no internal resistance 1 2E 4E...
- Q Initially the switch S is open for a ling time Now the switch S is closed at t 0 R 20 R 20 C 1F and C 1F Then A...
- Q Two cells having unknown e m f s E and E E E are connected in potentiometer circuit so as to assist each other The null point is obtained at...
- Q JEE 1977 D 2 Two non physics students A and B living in neighboring hostel rooms decided to economies by connecting their bulbs in series They agreed that each would...
- Q charge crossed through a section of the wire in 3 Estimate the average drift speed of conduction electrons in a copper wire of cross sectional area 1 0 x 10...
- Q 14 In the circuit shown A i 2A 10 2 B i 9 A wwwww 20 22 30 Q 60V C i 5 A D i 11A
- Q Find equivalent resistance between A and B A R R ww R R R B
- Q Q 1 A current of 1 2 x10 10 A flows through a wire of diameter 2 0mm Calculate the current density 3 8 x 105 Am
- Q In the given ci zero deflection if A R F R 1 R R R R 2 R R R R4 3 R R R R gar WWW R R...
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