हिंदी
तमिलनाडु बोर्ड ऑफ सेकेंडरी एज्युकेशनएचएससी विज्ञान कक्षा १२

What is meant by wattles current? - Physics

Advertisements
Advertisements

प्रश्न

What is meant by wattles current?

टिप्पणी लिखिए
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.

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 4: Electromagnetic Induction And Alternating Current - Evaluation [पृष्ठ २६०]

APPEARS IN

सामाचीर कलवी Physics - Volume 1 and 2 [English] Class 12 TN Board
अध्याय 4 Electromagnetic Induction And Alternating Current
Evaluation | Q II. 19. | पृष्ठ २६०

संबंधित प्रश्न

Obtain an expression for average power dissipated in a purely resistive A.C. circult. 


When an AC source is connected to an ideal inductor show that the average power supplied by the source over a complete cycle is zero.


An AC circuit consists of only an inductor of inductance 2 H. If the current is represented by a sine wave of amplitude 0.25 A and frequency 60 Hz, calculate the effective potential difference across the inductor. (π = 3.142)


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?


A 100 μF capacitor is charged with a 50 V source supply. Then source supply is removed and the capacitor is connected across an inductance, as a result of which 5A current flows through the inductance. Calculate the value of the inductance.


Give any one definition of power factor.


An e.m.f. E = E0 sin `omega`t is applied to a circuit containing 'L' and 'R' in series. If XL = R, then the power dissipated in the circuit is ____________.


In series LCR circuit R = 18 Ω and impedance is 33 Ω An rms voltage 220V is applied across the circuit. The ture power consumed in AC circuit is ______.


Where is the power dissipated in an alternating current circuit?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×