The frequency of alternating current (AC) in India is standardized at 50 Hz.
The AC electric supply for domestic purposes in India has a frequency of
Asked in FINANCE AND ACCOUNTS OFFICER TREASURY OFFICER 2016 · Topic: Electric Current (Electrical Power and Energy, Joule heating effect)
More Physics questions
- Match the devices with their associated forms of energy conversion: Device | Energy Conversion ------- | -------- a. Electric Motor | 1. Electrical $\rightarrow$ Mechanical b. Electric Bulb | 2. Electrical $\rightarrow$ Light c. Solar Panel | 3. Light $\rightarrow$ Electrical d. Microphone | 4. Sound $\rightarrow$ Electrical
- In India, distribution of electricity for domestic purpose is done in the form of— [A] 220 V; 50 Hz [B] 110 V; 60 Hz [C] 220 V; 60 Hz [D] 110 V; 50 Hz
- The current waveform, as shown in Fig. 3, is applied in a pure resistor 10 $\Omega$ (ten ohms). The power dissipated in the resistor is
- An alternator is delivering power to a balanced load at unity power factor. The phase angle between the line voltage and the line current is
- If the readings of two wattmeters are equal and positive in the two-wattmeter method, the load power factor in a balanced 3-phase, 3-wire circuit will be
- A 200 V/100 V, 50 Hz transformer is to be excited at 40 Hz from 100 V side. For the excitation current to be same, the applied voltage should be
- In case of 3-phase induction motor, shaft power is 2700 W and mechanical losses are 180 W. At a slip of 4%, the rotor ohmic losses are
- A 1-phase half-wave rectifier is used to supply to a load of impedance $8\Omega$ from 220 V, 50 Hz AC supply at a firing angle of $60^\circ$. The effective value of voltage is
