Physics question and answers for November 16, 2023
- Q In a series LCR circuit the voltage across R is 100V and R 1 k2 C 2 F The resonant frequency w is 200 rad s At resonance the voltage...
- Q An ac voltage source of variable angular frequency and fixed amplitude Vo is connected in series with a capacitance C and an electric bulb of resistance R inductance zero When...
- Q Mock Test Paper Code MTK 06 A sinusoidal a c current passes through a resistance R in LCR series circuit If phase difference between supplied voltage and supplied current is...
- Q 6 Comparing the L C oscillations with the oscillations of a spring block system force constant of spring k and mass of block m the physical quantity m and k...
- Q F In the L C circuit shown in figure the current is in direction shown in the figure and charges on the capacitor plates have sign shown in the figure...
- Q What is the frequency of power in an AC circuit connected to a capacitor Given f 30 Hz V 200 V 1 50 Hz 3 zero 2 100 Hz 4...
- Q 16 An ac source of 200 V rms supplies active power of 600 W and reactive power of 800 VAR The rms current drawn from the source is
- Q 20 mA A group of electric lamps having a total power rating of 1000 watt is connected across an AC voltage 200sin 310t 60 where t in seconds gives in...
- Q The time constant of a circuit is 10 s when a resistance of 10 2 is connected in series in a previous circuit then time constant becomes 2 s then...
- Q The relation between an A C voltage source and time in SI units is V 120 sin 100 t os 100 t volt value of peak voltage and frequency will...
- Q 39 A choke coil and capacitor are connected in series and the current through the combination is maximum for AC of frequency n If they are connected in parallel at...
- Q 4 An electric current has both DC and AC components DC component of 8A and AC component is given as I 6 sinot So Ims value of resultant current is...
- Q 8 A resistance is connected to a capacitor in AC and TU between current and the phase difference is 1 b 4 1 voltage When the same resistance is connected...
- Q 6 The average power dissipated in a pure inductor of inductance L when an AC current is passing through it d zero b L c 2L a NI
- Q An AC source is rated 220 V 50 Hz The average voltage is calculated in a time interval of 0 01 s It 1 must be zero 3 is never...
- Q In a series LCR circuit which is connected to an AC voltage source choose the incorrect statemen Algebraic sum of instantaneous voltage across L C R is a variable live...
- Q Figure shows acceleration versus time graph of a particle starting from rest and moving along a straight line Which of the following statement s is are CORRECT a ms 25...
- Q In the given circuit the switch is closed at t 0 The ratio of electric current through resistance R at t 0 and at t 0 is R R R...
- Q If E 100 sin 100t volt and I 100 sin 100t 73m mA are the instantaneous values of voltage and current then the r m s values of voltage and...
- Q 10 1 0F condenser is charged to 50 volts The charging battery is than disconnected and a 10 mH coil is connected across the capacitor so that LC oscillations occur...
- Q A 100 32 resistance and a capacitor of 100 Q reactance are connected in series across a 220 V source When the capacitor is 50 charged the peak value of...
- Q the value of R iv Current through the source is c option i RMS value of current through a c source is ii Impedance of circuit is independent of o...
- Q ation of EMF with time for four types of generators are shown in the figures Which amongst them can be called AC NEET 2019 Odisha EA a c E EA...
- Q In the circuit shown calculate the current I 5 Points E 100 V 20 T R ww 4 92 R Xc XL 69 000 190 70 R 802
- Q The potential barrier existing across an unbiased p n junction is 0 2 volt What minimum kinetic energ hould have to diffuse from the p side to the n side...
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