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A physical quantity X is represented by X = (M^x L^-y T^-z). The maximum percentage errors in the measurement of M, L, and T, respectively, are a%, b% and c%. The maximum percentage error
15
Sep
A physical quantity X is represented by X = (M^x L^-y T^-z). The maximum percentage errors in the measurement of M, L, and T, respectively, are a%, b% and c%. The maximum percentage error A physical quantity X is represented by X = (M^x L^-y T^-z). The maximum percentage errors in the measurement of M [...]
Following figure shows an AC generator to a “block box” through a pair of terminals.The box contains possible R,L,C or their combination, whose elements and arrangements are not known to us. Measurements, outside the box reveals that e = 75 sin(ωt)volts, i=1.5 sin (ωt+45∘) amp then. the wrong statements is
11
Sep
Following figure shows an AC generator to a “block box” through a pair of terminals.The box contains possible R,L,C or their combination, whose elements and arrangements are not known to us. Measurements, outside the box reveals that e = 75 sin(ωt)volts, i=1.5 sin (ωt+45∘) amp then. the wrong statements is C or their combination Following [...]
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C or their combination ,
Following figure shows an AC generator to a "block box" through a pair of terminals.The box contains possible R ,
i=1.5 sin (ωt+45∘) amp then. the wrong statements is ,
L ,
outside the box reveals that e = 75 sin(ωt)volts ,
whose elements and arrangements are not known to us. Measurements ,
In an electrical circuit, R, L, C and ac voltage source are all connected in series. When L is removed from the circuit, the phase difference between the voltage and the current in the circuit is π/3. If instead C is removed from the circuit, the phase difference is again π/3. The power factor of the circuit is
19
Aug
In an electrical circuit, R, L, C and ac voltage source are all connected in series. When L is removed from the circuit, the phase difference between the voltage and the current in the circuit is π/3. If instead C is removed from the circuit, the phase difference is again π/3. The power factor of [...]
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Chapter 27 - Alternating Current
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NEET Last 32 Years Solved 1988 - 2019 Physics and Chemistry Video Solutions
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Physics
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C and ac voltage source are all connected in series. When L is removed from the circuit ,
In an electrical circuit ,
L ,
R ,
the phase difference between the voltage and the current in the circuit is π/3. If instead C is removed from the circuit ,
the phase difference is again π/3. The power factor of the circuit is ,
In a circuit, L, C and R are connected in series with an alternating voltage source of frequency f. The current leads the voltage by 45 degree. The value of C is
19
Aug
In a circuit, L, C and R are connected in series with an alternating voltage source of frequency f. The current leads the voltage by 45 degree. The value of C is C and R are connected in series with an alternating voltage source of frequency f. The current leads the voltage by 45 degree. [...]