Exams › NEET › Physics

Choose the incorrect statement.

1. Alternating current is oscillatory
2. Electric power is transmitted over long distances using alternating current
3. Frequency of alternating current in India is \( 50 \mathrm{Hz} \)
4. Alternating current can be used for electrolysis of copper chloride.

Correct answer: Alternating current can be used for electrolysis of copper chloride.

Solution

Electrolysis needs direct current so ions move consistently to the electrodes. Alternating current reverses direction repeatedly, so it is not suitable for electrolysis of copper chloride.

Related NEET Physics questions

• The current flowing through the resistor in a series LCR a.c. circuit, is \( \boldsymbol{I}=\varepsilon / \boldsymbol{R} \) Now the inductor and capacitor are connected in parallel and joined in series with the resistor as shown in figure. The current in the circuit is now. (Symbols have their usual meaning)
• Which of the following will not increase voltage in a simple generator?
• With increase in frequency of an A.C. supply, the inductive reactance
• \( \ln \) an \( A C \) circuit, the instantanceous emf and current are given by \( e=100 \sin 30 t, i=\sin \left(30 t \frac{\pi}{4}\right) \) In one cycle of \( A C, \) the average power consumed by the circuit and the wattles current are, respectively
• The Joules heating effect for an electric heater in \( A . C \) and in D.C. circuit is
• A resistance \( (\boldsymbol{R})=12 \Omega ; \) inductance \( (L)=2 \) henry and capacitive reactance \( C=5 m F \) are connected in series to an ac generator, then:

⚔️ Practice NEET Physics free + battle 1v1 →