Physics-
General
Easy
Question
The potential different across a 2H inductor as a function of time is shown in figure. At time t=0, current is zero Current at t=2s is
- 1 A
- 3 A
- 4 A
- 5 A
The correct answer is: 5 A
Related Questions to study
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For the circuit shown in figure, the current through the inductor is 1.6 amp. While the current through the condenser is 0.4 amp. Then
For the circuit shown in figure, the current through the inductor is 1.6 amp. While the current through the condenser is 0.4 amp. Then
physics-General
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In a parallel LCR circuit shown in figure, at resonance,
In a parallel LCR circuit shown in figure, at resonance,
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Which of the following plots may represent the reactance of a series LC combination
Which of the following plots may represent the reactance of a series LC combination
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The figure shows variation of 
and 
with frequency f in a series L,C,R circuit. Then for what frequency point, the circuit is inductive
The figure shows variation of and with frequency f in a series L,C,R circuit. Then for what frequency point, the circuit is inductive
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The graphs given below depict the dependence of two reactive impedances 
and 
on the frequency of the alternating e.m.f. applied individually to them. We can then say that
The graphs given below depict the dependence of two reactive impedances and on the frequency of the alternating e.m.f. applied individually to them. We can then say that
physics-General
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When an ac source of e.m.f. 
is connected across a circuit, the phase difference between the e.m.f. e and the current 
in the circuit is observed to be 
, as shown in the diagram. If the circuit consists possibly only of RC or LC in series, find the relationship between the two elements
When an ac source of e.m.f. is connected across a circuit, the phase difference between the e.m.f. e and the current in the circuit is observed to be , as shown in the diagram. If the circuit consists possibly only of RC or LC in series, find the relationship between the two elements
physics-General
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Find the rms and average value of the wave-form shown in figure.
Find the rms and average value of the wave-form shown in figure.
physics-General
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The current 'i' in an inductance coil varies with time 't' according to following graph
Which one of the following figures shows the variations of voltage in the coil
The current 'i' in an inductance coil varies with time 't' according to following graph
Which one of the following figures shows the variations of voltage in the coil
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Figure shows a typical circuit for low-pass filter. An AC input 
=10mV is applied at the left end and the output 
is received at the right end. Find the output voltage for v=10kHz,100kHz,
Figure shows a typical circuit for low-pass filter. An AC input =10mV is applied at the left end and the output is received at the right end. Find the output voltage for v=10kHz,100kHz,
physics-General
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When an Ac source of emf 
is connected across a circuit, the phase difference between the emf E and the current I in the circuit is observed to be , as shown in the fig. If the circuit consists only of R-C (or) R-L (or) L-C series. Possible values of the elements of the circuit are
When an Ac source of emf is connected across a circuit, the phase difference between the emf E and the current I in the circuit is observed to be , as shown in the fig. If the circuit consists only of R-C (or) R-L (or) L-C series. Possible values of the elements of the circuit are
physics-General
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The following series L-C-R circuit, when driven by an e.m.f. source of angular frequency 70 kilo - radians per second, the circuit effectively behaves like
The following series L-C-R circuit, when driven by an e.m.f. source of angular frequency 70 kilo - radians per second, the circuit effectively behaves like
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The decreasing order of bond length of 
in the following compounds is:
The decreasing order of bond length of in the following compounds is:
chemistry-General
chemistry-
Which of the indicated H in the following is most acidic?
Which of the indicated H in the following is most acidic?
chemistry-General
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Arrange the following alcohols in decreasing order of the ease of ionization under acidic conditions.
Arrange the following alcohols in decreasing order of the ease of ionization under acidic conditions.
chemistry-General
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Which of the following 
-bonds participate in hyperconjugation?
Which of the following -bonds participate in hyperconjugation?
chemistry-General
