Consider now the following statements
I. | Readings in \(A\) and \(V_2\) are always in phase |
II. | Reading in \(V_1\) is ahead in phase with reading in \(V_2\) |
III. | Readings in \(A\) and \(V_1\) are always in phase |
1. | I only | 2. | II only |
3. | I and II only | 4. | II and III only |
The figure shows the variation of \(R\), \(X_L\), and \(X_C\) with frequency \(f\) in a series of \(L\), \(C\), and \(R\) circuits. For which frequency point is the circuit inductive?
1. | \(A\) | 2. | \(B\) |
3. | \(C\) | 4. | All points |
1. | \(0.052\) H | 2. | \(2.42\) H |
3. | \(16.2\) mH | 4. | \(1.62\) mH |
In an \(LCR\) series network, \(V_L = 40~\text{V}, V_C = 20~\text{V}~\text{and}~V_R = 15~\text{V}.\) The supply voltage will be:
1. \(25~\text{V}\)
2. \(75~\text{V}\)
3. \(35~\text{V}\)
4. zero
1. | \(3.0\) V | 2. | \(0.75\) V |
3. | \(1.5\) V | 4. | Zero |
1. | \(1600\) A | 2. | \(20\) A |
3. | \(4\) A | 4. | \(1.5\) A |
1. | \(60\) Hz and \(240\) V |
2. | \(19\) Hz and \(120\) V |
3. | \(19\) Hz and \(170\) V |
4. | \(754\) Hz and \(70\) V |
In an ac circuit, the current is given by \(i=5\sin(100t-\frac{\pi}{2})\) and the ac potential is \(V =200\sin(100 t)\) volt.
The power consumption is:
1. \(20\) W
2. \(40\) W
3. \(1000\) W
4. \(0\)