The voltage of domestic ac is $220$ $ volt$. What does this represent
The voltage of domestic ac is $220$ $ volt$. What does this represent
- A
Mean voltage
- B
Peak voltage
- C
Root mean voltage
- D
Root mean square voltage
Similar Questions
Match the following
Currents $r.m.s.$ values
(1)${x_0}\sin \omega \,t$ (i)$ x_0$
(2)${x_0}\sin \omega \,t\cos \omega \,t$ (ii)$\frac{{{x_0}}}{{\sqrt 2 }}$
(3)${x_0}\sin \omega \,t + {x_0}\cos \omega \,t$ (iii) $\frac{{{x_0}}}{{(2\sqrt 2 )}}$
Match the following
Currents $r.m.s.$ values
(1)${x_0}\sin \omega \,t$ (i)$ x_0$
(2)${x_0}\sin \omega \,t\cos \omega \,t$ (ii)$\frac{{{x_0}}}{{\sqrt 2 }}$
(3)${x_0}\sin \omega \,t + {x_0}\cos \omega \,t$ (iii) $\frac{{{x_0}}}{{(2\sqrt 2 )}}$
Assertion : Ohm’s law cannot be applied to $a.c$ circuit.
Reason : Resistance offered by capacitor for a.c source depends upon the frequency of the source.
Assertion : Ohm’s law cannot be applied to $a.c$ circuit.
Reason : Resistance offered by capacitor for a.c source depends upon the frequency of the source.
- [AIIMS 2009]
The variation of $EMF$ with time for four types of generators are shown in the figures. Which amongst them can be called $AC$ ?
The variation of $EMF$ with time for four types of generators are shown in the figures. Which amongst them can be called $AC$ ?
- [NEET 2019]
The peak value of $220 \,volts$ of $ac$ mains is......$volts$
The peak value of $220 \,volts$ of $ac$ mains is......$volts$
An alternating voltage $\mathrm{V}(\mathrm{t})=220 \sin 100 \ \pi \mathrm{t}$ volt is applied to a purely resistive load of $50\ \Omega$. The time taken for the current to rise from half of the peak value to the peak value is:
An alternating voltage $\mathrm{V}(\mathrm{t})=220 \sin 100 \ \pi \mathrm{t}$ volt is applied to a purely resistive load of $50\ \Omega$. The time taken for the current to rise from half of the peak value to the peak value is:
- [JEE MAIN 2024]