Physics question and answers for January 03, 2024
- Q 75 The length of a wire of a potentiometer is 100 cm and the emf of its cell is E volt It is employed to measure the emf of a...
- Q Four resistances arranged to form a Wheatstone network are 8 12 Q2 6 2 and 27 Q2 The resistance should be shunted across 27 so that the bridge is balanced...
- Q Note Each question carries 5 Marks Question 1 Find the equivalent resistanc between terminals A and B Where R1 1170 R2 1562 R3 312 2 R4 1560 R5 11 2...
- Q A charged capacitor C 3 F is getting discharged in the circuit shown When the current I was observed to be 2 5A switch S was opened Determine the amount...
- Q 95 Two batteries of emf and 2 2 and internal resistances and 2 respectively are connected in parallel as shown in figure NCERT Exemplar 1 A HH 82 11 www...
- Q 2 In a metre bridge figure below the null point is found at a distance of 33 7 cm from A If now a resistance of 12 ohm is connected...
- Q 3 80 cm 4 60 cm 22 In the given circuit the heat developed across 60 resistor in 2s will be 23 1 32 3 3 24J ap www 30...
- Q 19 Using Kirchhoff s rules determine the value of unknown resistance R in the circuit Fig 2 62 so that no current flows through 40 resistance Also find the potential...
- Q 4 go 71 A current of 4A flows in a coil when connected to a 12V DC source If the same coil is connected to a 132V 50rad s AC...
- Q When no current is passed through a conductor A B C D The free electrons do not move The average speed of a free electron over a large period of...
- Q 92 A battery has six cells in series Each has an emf 1 5V and internal resistance 1 ohm If an external load of 24 22 is connected to it...
- Q 88 A voltmeter of resistance 99 22 connected across a cell shows a reading of 9 9V An ammeter of resistance 12 connected to the same cell shows 5A The...
- Q 35 The pd a cross terminals of a cell is found to be 29 volt and 28 volt respectively when it delivers a current of 1 ampere and 2 ampere...
- Q An apparatus is connected to an ideal battery as shown in figure For what value of current power delivered to the apparatus apparatus 2 33 3 ERE ES 2R 4R...
- Q A toaster has a heating element which has a temperature coefficient of resistivity of 2 0 x 10 3 C The toaster is plugged into an outlet which delivers a...
- Q Read More For a cell a graph is plotted between the potential difference Vacross the terminals of the cell and the current drawn from the cell The emf and internal...
- Q A zener diode having breakdown voltage equa to 15 V is used in a voltage regulator circui shown in figure The current through the zene diode is 1 5 mA...
- Q In the electrical circuit shown in figure the 35 current through the 412 resistor is www 22 9V 1 1A 3 0 25 A www 302 202 www 802 252...
- Q 14 In the circuit shown below what will be the reading of voltmeter V and ammeter A vodovod 300V 1 200V 1A 3 220V 2A 300V 10092 V 220V 50Hz...
- Q o Zero Four ammeters with identical internal resistances r and a resistor of resistance R are connected to a current source as shown in figure It is known that the...
- Q 4 All of these QA 2 t The graph between charge Q in coulomb a t in second is parabolic The average currer interval 0 to 4 second is 1...
- Q The figure below shows a U tube attachet its ends to two glass bulbs one coated black paint and the other polished The tub partly filled with alcohol When a...
- Q Pick out the correct statement from the following A B C D Charge flows slower where the conductor is smaller in cross section Charge flows faster where the conductor is...
- Q In the circuit shown in figure B 492 F Read More 2 V E 492 2 V HH 2 V O Current in wire AF is 1 A O Current...
- Q A battery of emt E is connected across a conductor as shown As one observers from A to B B A r E Column I i Current ii Drift velocity...
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