Explanation:
$\text{X}_\text{C}=\frac{1}{\text{C}\omega}=10000\Omega$
ammeater reading $=\text{I}_\text{rms}=\frac{\text{V}_\text{rms}}{\mid\text{jX}_\text{c}\mid}=\frac{50}{10000}=5\text{mA}$
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In comparison to a half wave rectifier, the full wave rectifier gives lower
|
(a) Efficiency |
(b) Average dc |
|
(c) Average output voltage |
(d) None of these |
When a resistance of 2 ohm is connected across the terminals of a cell, the current is 0.5 A. When the resistance is increased to 5 ohm, the current is 0.25 A. The e.m.f. of the cell is
|
(a) 1.0 V |
(b) 1.5 V |
(c) 2.0 V |
(d) 2.5 V |
A beam of plane polarized light falls normally on a polarizer of cross sectional area 3 
. Flux of energy of incident ray in 10–3 W. The polarizer rotates with an angular frequency of 31.4 rad/sec. The energy of light passing through the polarizer per revolution will be
|
(a) 10–4 Joule |
(b) 10–3 Joule |
(c) 10–2 Joule |
(d) 10–1 Joule |
Photon and electron are given same energy (
. Wavelength associated with photon and electron are 
and 
then correct statement will be
|
(a) |
(b) |
(c) |
(d) |
