The electrode at which terminal get plated during electroplating?
Positive.
Negative.
Neutral.
Either positive or negative
When the ends of metal wire are not connected to a battery:
Electrons move from positive electrode to negative electrode.
Electrons move from negative electrode to positive electrode.
Electrons move in random directions.
Protons move in random direction in such a way that their net movement in a unit volume is zero.
A cell converts
Electrical energy into chemical energy.
Chemical energy into electrical energy.
Magnetic energy into electrical energy.
Electrical energy into mechanical energy.
Who proved that when electrodes are immersed in water and currents are passed, bubbles of oxygen and hydrogen were produced?
Games Watt.
J.J.Thomson.
Issac Newton.
William Nicholson.
Current is the flow of
Matter
Electrons
Protons
Charge
Copper electrode
Donates electrons to hydrogen ions
Accepts electrons from hydrogen ions
Donate electrons to sulphate ions
Accepts electrons from sulphate ions
A cell converts:
In a cell,the electron movement will be :
Positive electrode to negative electrode
Negative electrode to positive electrode
Both A and B
Electrons do not move and only negative charge moves from one place to another place
The common dry cell produces a voltage of
60 V
1.5 V
3 V
30 V
In a cell, electrons move from:
Positive electrode to negative electrode.
Negative electrode to positive electrode.
Both A and B.
Electrones do not move and only negative charge moves from one place to another place.