Advertisements
Advertisements
प्रश्न
What is meant by wattles current?
Advertisements
उत्तर
The component of current (IRMS sin φ), which has a phase angle of \[\frac{\pi}{2}\] with the voltage is called reactive component. The power consumed is zero. So that it is also known as ‘Wattless’ current.
APPEARS IN
संबंधित प्रश्न
Prove that an ideal capacitor in an AC circuit does not dissipate power
A light bulb is rated 100W for 220 V AC supply of 50 Hz. Calculate
- resistance of the bulb.
- the rms current through the bulb
Alternating emf of e = 220 sin 100 πt is applied to a circuit containing an inductance of (1/π) henry. Write an equation for instantaneous current through the circuit. What will be the reading of the AC galvanometer connected in the circuit?
A 25 μF capacitor, a 0.10 H inductor, and a 25Ω resistor are connected in series with an AC source whose emf is given by e = 310 sin 314 t (volt). What is the frequency, reactance, impedance, current, and phase angle of the circuit?
The effective capacitor between A and B in the following circuit is ______.
Where is the power dissipated in an alternating current circuit?
In an a.c. circuit, voltage and current are given by:
V = 100 sin (100 t) V and I = `100 sin (100 t + pi/3)` mA respectively.
The average power dissipated in one cycle is:
In the instantaneous-power expression, what does \[I_m\] represent?
Which component of current is perpendicular to the applied voltage \[V\]?
What is the impedance of a series LCR circuit with \[R=3\,\Omega\], \[X_L=8\,\Omega\], and \[X_C=4\,\Omega\]?
