Advertisements
Advertisements
प्रश्न
The alternating current in a circuit is described by the graph shown in figure. Show rms current in this graph.
Advertisements
उत्तर
Graph or rms current is shown below by dotted line
`I_(rms) = sqrt((1^2 + 2^2)/2) = sqrt(5/2)` = 1.6A
APPEARS IN
संबंधित प्रश्न
An alternative voltage given by V = 140 sin 314t is connected across a pure resistor of 50 Ω. Find
- The frequency of the source.
- The rms current is through the resistor.
A 100 Ω resistor is connected to a 220 V, 50 Hz ac supply.
- What is the rms value of current in the circuit?
- What is the net power consumed over a full cycle?
A 100 Ω resistor is connected to a 220 V, 50 Hz ac supply.
What is the net power consumed over a full cycle?
Effective voltage Vrms is related to peak voltage Vo by ______.
If Vm and Im are peak voltage and current, impedance Z in an AC circuit is ______.
Study the circuits (a) and (b) shown in figure and answer the following questions.
 (a) |
 (b) |
- Under which conditions would the rms currents in the two circuits be the same?
- Can the rms current in circuit (b) be larger than that in (a)?
Can the instantaneous power output of an ac source ever be negative? Can the average power output be negative?
If the reading of the voltmeter V1 is 40 V, then the reading of voltmeter V2 is ______.
When an AC voltage is applied to a pure resistor, the current and voltage are ______.
The average value of alternating current over one complete cycle is ______.
The RMS (root mean square) value of current is related to peak current im by ______.
The average power dissipated in a resistor when an AC current of peak value im flows through it is ______.
