Materials which allow larger current to flow through them are called: - Conductors
When a glass rod is rubbed with silk, it acquires a positive charge because: - Electrons are removed from it
When two bodies are charged together by rubbing each other then both of them acquire: - Equal and opposite charges
Charges flow between two ends of a conductor when: - Different electric potential exist at the two ends of a conductor
All wires used in electric circuits should be covered with: - An insulating material
An electric current of 12 ampere flows through a conductor for 15 seconds. Find the amount of charge that flows. - 180C
During how much time must a charge of 30 coulomb flow through a conductor to constitute a current of 1.5 ampere? - 45 Sec
If 6 coulomb charge flows through a conductor in 3 Seconds, find the strength of electric current. - 3A
A body has 70 protrons and 85 electrons. What charge will the body possess? - Negative Charge
When the path of current, strating from one terminal of cell, ends at the other terminal of the cell is broken at some point, then such a circuit is called: - Open or incomplete circuit
Anmenter is always connected in: - Series
The SI unit of current is: - Ampere
If I is the current through a wire and e is the charge of electron, then the number of electrons in the second will be given by: - It/e
Conventionally the direction of the current is taken as: - The direction of flow of positive charge
Which of the following is not a circuit element? - Potential difference
Current stop flowing when: - Electric potenitial of the two conductor are same
Electric current is the flow of: - Electrons
Static electricity is the branch of physics which deals with the study of charges at/in _____. - Rest
An electrolyte is: - A liquid that conducts electricity
Cathode is: - Negatively charged electrode
Electroplating is a method of: - Coating a metal by another metal by passing an electric current
Electric bell works on the principle of: - Magnetic effect of current
Earthing protects us from: - Electrical Shocks
Cations is: - Positive charged ions
A solution of a chemical compound which does not conduct electric current - Non-Electrolyte
The metal wires/plates/rods through which the current enters in electrolyte or leaves in known as ______ - Electrode
To glow the LED by lemon we use ______ & __________ as electrode. - Copper & Zinc
Best conductor of electricty is _______. - Silver
1 electron has _______(-ve) charge. - 1.6 x 10^-19
