Physics question and answers for November 20, 2023
- Q An ac signal sinusoidal output from a device is shown in the figure The average value and rms value respectively in the given case are 26 26 INCERT Pg 235...
- Q 6 In the circuit shown in the figure The voltmeter and ammeter reading will respectively be source voltmeter and ammeter are ideal NCERT Pg 245 25 2 50 12 www...
- Q 11 A resistor of 100 2 is connected in ser with series combination of inductor capacitor If XL and Xc are the reactance inductor and capacitor respectively reactance of circuit...
- Q 4 Capacitance C A capacitor C initially charged upto qm is connected to an inductor L The differential equation of LC oscillator is NCERT Pg 255 d q 1 9...
- Q 28 A When a coil is connected current through it is zero R When a coil is connected to a battery induced emf initially is zero 1 A is true...
- Q indin 10 A F capacitor is connected to a 200 1 50 Hz ac source The capacitive reactan of the circuit is INCERT Pg 24 1 1000 2 2 500...
- Q viii A resistance of 1002 is joined in series with an inductance of 0 5H What capacitance should be put in series with the combination to obtain the maximum current...
- Q issage As shown in figure given tan 4 3 530 Box 1 R 30 x 40 00000 Xc 100 V fHz V 200 2 sin at f 4 Instantaneous current...
- Q The figure shows a LCR network connected to 300 V a c supply The circuit elements are such that R XL X 102 V V and V3 an three a...
- Q An input signal of frequency 50 Hz is applied to a rectifier circuit The output frequency will be 50 Hz if rectifier is full wave rectifier 50 Hz if rectifier...
- Q Assuming that diode is ideal the output waveform for the circuit shown in the figure is R www 20sinot 20 V t 20 V Fov 5 V t Voutput
- Q A circuit shown in the figure contains a box having either a capacitor or an inductor The power factor of the circuit is 0 8 while current lags behind the...
- Q In Figure V is the potential barrier across a p n junction when no battery is connected across the junction 1 1 and 3 both correspond to forward bias of...
- Q iv In a given AC circuit through a specific branch the current varies as a function of time given as i isin wt 0 wt and i isinot t 2...
- Q das shown in without any 4k T EMF 5 42 The figure 5 298 shows a specific RL circuit the time constant for this circuit is A C L 2R...
- Q a long stant 5 51 Initially in the circuit shown in figure 3 305 the switch is in position 1 for a long time and then shifted to position 2...
- Q In the circuit shown the average power developed in the resistor R is 31 25 W 62 50 W 125 W 250 W C 500 uF 6000002 L 0 1...
- Q 5 If is instantaneous velocity of particle and is velocity of wave then 1 a is perpendicular to 2 is parallel to 3 1 is equal to 1 4 101...
- Q In the given AC circuit which of the following is incorrect XL 1052 Xc 1032 mot R 1092 wwwww 100 sin 100 t 2 A Voltage across resistance is lagging...
- Q Consider a series LCR circuit XL 300 R 20 0 Xc 100 The equation for ac voltage source is given as V t 100 2 sin wt Choose the correct...
- Q Consider a series LCR circuit C L 6000000 R XL 3002 R 20 Xc 100 The equation for ac voltage source is given as V t 100 2 sin cot...
- Q 2 C e se Ans 30 2 50 2 2 2 A 300 rad s 23 A 0 21 H inductor and a 12 2 resistor are connected in series...
- Q An ac source is initially connected to a resistor R Situation 1 If an inductor is connected in series with the resistor the impedance in the circuit is 3R Situation...
- Q 5 F S 30 5 F HH 30 122 80 125 12 82 B 5 F be x t between the plates 39 Three 1 2 three 82 and three...
- Q Consider a circuit which contains only pure inductor or a pure capacitor connected to an ac source and resistor is absent Choose the correct statement 1 Power dissipated in the...
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