Question

.
State the meaning of the terms:
(a) Electro-magnetic induction
(b) Electrolysis
(d) Electrorefining of metals
(c) Electrodes​

Answer 1

Answer : A; Electromagnetic Induction is the process of using magnetic fields to produce voltage, and in a closed circuit, a current. So how much voltage  can be induced into the coil using just magnetism.

B:Electrolysis is the process by which ionic substances are decomposed (broken down) into simpler substances when an electric current is passed through them. Electricity is the flow of electrons or ions.

C: refining of a metal (such as copper) by electrolysis, the crude metal used as the anode going into solution and the pure metal being deposited upon the cathode. — called also electrolytic refining.

D:​Electrodes: The rods of a conducting material, connected to the terminals of a battery, are called electrodes. They conduct electricity through the electrolyte. The positive electrode is called anode, whereas the negative electrode is called cathode.

Explanation:hope helpful mark me plz!

Answer 2

Explanation:

a)electromagnetic induction. Production of an electric current (see also current) by changing the magnetic field enclosed by an electrical circuit. The most common use of electromagnetic induction is in the electric generator.

b)Electrolysis is the passing of a direct electric current through an electrolyte producing chemical reactions at the electrodes and decomposition of the materials. The main components required to achieve electrolysis are an electrolyte, electrodes, and an external power source.

c)Electrorefining refers to the process of using electrolysis to increase the purity of a metal extracted from its ore (compound or mixture of compounds from which a metal can be extracted commercially). The anode, positive electrode, is the impure metal to be purified.

d)An electrode is a solid electric conductor that carries electric current into non-metallic solids, or liquids, or gases, or plasmas, or vacuums. Electrodes are typically good electric conductors, but they need not be metals. Cathode and Anode.