Rate of flow of charge is called
Voltage
Resistance
Current
Conductance
The common dry cell produces a voltage of
60 V
1.5 V
3 V
30 V
................ present in the lemon juice acts as a electrolyte.
Nitric acid
Sulphuric acid
Citric acid
Hydrochloric acid
Current is the flow of
Matter
Electrons
Protons
Charge
Which of the following statements is correct?
A negatively charged particle has higher electric potential than a positively charged particle
Charge flow only through negative charge carriers like electrons
The randomly moving electrons in a metal wire will start moving in a particular direction when a potential difference is applied across it.
During electrolysis, charge flows through electrolyte solution via electrons
A cell converts:
Electrical energy into chemical energy.
Chemical energy into electrical energy.
Magnetic energy into electrical energy.
Electrical energy into mechanical energy.
Which of the following is an insulator?
Wood.
Iron.
Carbon.
Silver.
Physical reaction.
Chemical reaction.
No reaction.
None of these.
Metals are good conductors because
Outer electrons are loosely bound to the atom
Outer electrons are strongly bound to the atom
Inner electrons are loosely bound to the atom
Protons can detach from the nucleus and conduct electricity
Potential difference is measured in
Ohm
Coulomb
Ampere
Volt
