Physics question and answers for December 02, 2023
- Q 200 3 A neutral particle of mass 28 g is at rest in a uniform magnetic field B T At t 0 particle decays into two particle of equal mass...
- Q Chandrayan 1 the lunar mission launched by India in 2008 had all gold wiring A particular instrument on board the mission was operating at the same temperature as the space...
- Q A ample 2 10 Two resistors of resistances R 100 3 ohm and R 200 4 ohm are connected a in series b in parallel Find the equivalent resistance of...
- Q are usually made of 1 Metals with low temperature coefficient of resistivity 2 Semi conducting materials having low temperature coefficient of resistivity Metal oxides with high temperature coeffi cient of...
- Q In a potentiometer experiment the balancing length for a cell of emf 2 V and internal resistance 1 Q is 3 m Then the balancing length for a cell of...
- Q A voltmeter has a resistance of G ohm and a range of V volt The value of resistance that must be used in series to convert it into a voltmeter...
- Q If nn and ne be the number of holes and conduction electrons in an extrinsic semiconductor then Question Type Single Correct Type 1 nh ne 2 nh ne 3 ne...
- Q A galvanometer has an internal resistance of 50 2 and current required for full scale deflection is 1 mA then the series resistance required to use it as a voltmeter...
- Q If an ammeter is to be used in place of a voltmeter then we must connect with the ammeter a Low resistance in parallel High resistance in parallel O High...
- Q You are given a nichrome wire rheosta t 6V battery and ammeter a Draw a circuit diagram by connecting these in series b If ammeter reading is 2A then what...
- Q The surge absorb installed before the lightning arreste on the line side in order to Answer minimize the post discharge L voltage of lightning arrester reduce the cost of surge...
- Q 2 In a step up transformer transformation ratio is 100 The primary voltage is 200 V and input is 1000 watt The number of turns in primary is 100 Calculate...
- Q 21 A half wave rectifier is used to convert PINNA AC n Hz A C into D C then the number of pulses per second present in the rectified voltage...
- Q a Identify whether the following is a multiplexer or a demultiplexer Define both in your own words Mux or Demux Select Inputs S Data out 44 Data in b In...
- Q A cell is balanced at 100cm of a potentiometer wire when the total length of the wire is 400cm If the length of the potentiometer wire is increased by 100cm...
- Q Circuit for the measurement of resistance is shown in the figure The is first connected at point Aand potentiometer galvanometer zero deflection is observed at length PJ 10cm In the...
- Q In the experiment of calibration of voltmeter a standard cell of e m f 1 1 Volt is balanced against 440 cm of potentiometer wire The potential difference across the...
- Q 30 State the advantages and disadvantages of a moving coil galvanometer A moving coil galvanometer M C G has 10 turns each of length 12 cm and breadth 8 cm...
- Q 1 The potential difference across the 100 resistance in the circuit is measured by a voltmeter of 900 2 resistance The percentage error made in reading the potential difference is...
- Q 7 A resistance of 202 is connected across one gap of a metre bridge and unknown resistance greater than 202 is connected across the other gap When these resistances are...
- Q O uit diagrams A B C and D shown below R is a high resistance and S is a resistance of the order of galvanometer resistance G deflection method for...
- Q During an experiment with a meter bridge the galvanomete shows a null point when the jockey is pressed at 40 0 cm using a standard resistance of 90 2 as...
- Q To know the resistance G of a galvanometer by half deflection method a battery of emf V and resistance R is used to deflect the galvanometer by angle 0 If...
- Q In the arrangement shown in figure when the switch S is open the galvanometer shows no deflection for 1 L 2 When the switch S is closed the galvanometer shows...
- Q A galvanometer has a resistance of 3002 and a current of 2mA is needed to give a full scale deflection What is the resistance needed to convert the galvanometer Into...
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