Physics question and answers for January 05, 2024
- Q A coil of resistance R is connected between the terminals for a battery The quantity of heat produced in 5 minutes is H Now that coil is cut into two...
- Q 3 In a metre bridge circuit null point is produced at a dis tance 40 cm from A If a resistance 12 is connected in parallel with S null point...
- Q Question No 3 For the circuit shown in figure potential difference of 12 V is applied across www 202 152 C 202 E 352 www 203 0 wwwwwwwwww 32 D...
- Q If two bulbs of wattage 25 and 100 respectively each rated at 220 volt are connected in series with the supply of 440 volt which bulb will fuse A 100W...
- Q 7 The length of the potentiometer wire AB is 100 cm and its resistance is 10 2 Fig 2 68 When AC 40 cm then the null condition of the...
- Q According to Joule s law if potential difference across a conductor having a material of specific resistance P remains constant then heat produced in the conductor is directly proportional to...
- Q E I A B S C Three identical that is same resistance lamps A B C are connected to a battery as shown The resistance of the switch S is...
- Q equal resistances each of resistance R are connected as shown in figure below A battery of V volt is connected between A and B The current flowing in FC will...
- Q 0 In a potentiometer experiment the balancing length with a cell in the secondary circuit is found to be 480 cm When a resistor of 8 ohm is connected in...
- Q 3 In a potentiometer experiment a particular cell produces balance in the wire at 560 cm If a 10 2 resistance is con nected with the cell in parallel then...
- Q a 4 In a potentiometer the balance length with standard cadmium cell is 509 cm The emf of cell which when connected in the place the standard cell gave a...
- Q 20 Resistors are connected in the two gaps of meter bridge The balance point is 20 cm from the zero end When a 15 22 resistor is connecte in series...
- Q 17 When two unknown resistances are placed in the gaps of meterbridge the null point is found to be 40cm from one end of the bridge wire When one of...
- Q 129 The potential gradient along the length of a uniform wire is 10 volt m B and C are two points at 30 cm and 60 cm in a scale...
- Q 127 A 10m long wire of resistance 15 ohm is connected in series with a battery of emf 2V no internal resistance and a resistance of 5 ohm The potential...
- Q 22 A cell of emf 2 V and negligible resistance is connected in series with a resistance of 5 ohm and a potentiometer wire of resistance 10 ohm What is...
- Q 13 In a potentiometer using two cells in series gave a balance length 600cm When the same cells are connected opposing each other then balance length is 100cm The ratio...
- Q 25 A potentiometer having a wire of 4m longth is connected to the terminals of a battery with a steady voltage A leclanche cell has a null point at 1m...
- Q 121 1 ohm and 2 ohm are connected in series across the left gap of a metre bridge The balancing length is 60 cm If the resistors were connected in...
- Q In the circuit shown in figure the switch Sis initially open and both the capacitors are initially uncharged Switch Sis closed at t 0 then S R I i at...
- Q In the figure shown balance point is at 40 cm from A when switch S is open and 60 cm from A when switch S is closed If AB 100...
- Q 99 Twenty four cells each of emf 1 5V and internal resistance 0 5 ohms are to be connected to a 3 ohm resistance For maximum current through this resistance...
- Q 102 In a balanced Wheatstone bridge a cell of emf 2 volt is connected between the ends of the diagonal AC What will be the potential difference between the ends...
- Q 00 A B C and D are four coils of wires of 2 2 2 and 3 ohm resistances respectively and are arranged to form a Wheatstone bridge The resistance...
- Q 97 When a resistor of 2 is connected across the terminals of a battery a current of 2A is found to flow When a second resistor of 8 is connected...
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