Question 3. A copper coil has a resistance of 2.43 at 50°C. Find its resistance at 60°C. The resistance temperature coefficient of copper is 0.0043 per ºC at o°C. a= RT - RTO RTO(T-TO)

60. Design a circuit to limit a 20 V rms sinusoidal voltage to a maximum positive amplitude of 10 V and a maximum negative amplitude of -5 V using a single 14 V de voltage source. 61 Datermine the volto in the girRuit F Figura 1 1?

Inductance of the coil is given by O a. L= 10/N O b. L = N¢/T O c. L= NOI O d. L= N¢ / |

Q4. Determine the equivalent inductance and equivalent current of the inductive circuit in Figure Q4. If L5 is replaced with a capacitor of 0.5 mF, how would it affect the branch current? The alternating Voltage source has an amplitude of 20 Vm. Vm Sine 50 Hz L1 5 mH L2 3 mH Figure Q4 reee L3 6.6 mH L4 2.8 mH rele L5 7 mH

Each of the conductor in a parallel-plate capacitor is calleda. dielectricb. insulatorc. platesd. terminal

a. individal current  b. voltage source

In CRO, an alternating current completes 2 cycle in 20 mS. Then its frequency is given by, ...................

The below figure shows the waveform of the voltage and current in a purely inductive AC circuit. Voltage Current Using the voltage phasor as the reference, the current phasor Lags by 90° Is in phase with the voltage Leads by 90° Lags and then leads by 160°

resistor waves

Please show your detailed solution Number 14 The current in a series inductive circuit is 7.5 A at 25 Hz. The circuit takes 425 W, and the power factor is 0.47. The resistance of the circuit is A. 7.32 ohms C. 7.98 ohms B. 7.86 ohms D. 7.56 ohms