A 2 ohms resistor having 1 ampere current will dissipate the power of
A 1 H inductance carrying the current of amperes will store the energy of
If two winding having self-inductances L1 and L2, and a mutual inductance m are connected in series will opposite, then the total inductance of series combination will be
An inductive circuit resistance 2 ohms and inductance 0.5 H is connected to a 250 volts, 50 Hz supply. What capacitance will be placed in parallel to produce resonance?
Which of the following statement is true?
Answer: A galvanometer with low resistance in series is an ammeter
A passive network
Answer: Has no e.m.f. source
In the circuit given below, the ammeter reads 0.1 ampere and voltmeter 10 volts. The internal resistance of the ammeter is 1 ohm and that of voltmeter is 500 ohms. What is the value of R?
Mass in the MKS unit system is analogous to
A damped oscillation has the equation I = 50 e-10tsin 628 t. What will be the frequency of a oscillation?
A 0.5 meter long conductor carrying a current of 2 amperes is placed in a magnetic field having the flux density of 0.05 wb/m2. What will be the amount of force experienced by the conductor?
If a coil has a resistance of 10 ohms and an inductance of 1 H, what will be the value of current 0.1 second after switching on a 500 V d.c. supply?
An electrical circuit is shown below, what will be the power dissipation in the circuit assuming P as power across R2 ?
If two resistances connected in parallel and each dissipates 10 watts the total power supplied by the voltage source equals
If a parallel circuit is open in the main line, the current
Answer: Is zero in all branches
In which of the following circuits most current will be produced by the voltage source?
Answer: 5 volts across two 5 ohm resistance in parallel
If a wire conductor of 0.1 ohm resistance is doubled in length, its resistance becomes
The square waveform of current has following relation between r.m.s. value and average value
Answer: R.M.S. value of the current is to average value
The transient currents are associated with the
Answer: Changes in the stored energy in the inductors and capacitors
A closed switch has a resistance of
Two 500 ohms, 1 watt resistors are connected in parallel. Their combined resistance and wattage rating will be
Answer: 250 ohms, 2 watts