امتحان اللايف Phy ||| Exam on Electric Current & Ohms law & Connecting resistors

The electronic and conventional direction are…………….

If the electric current intensity increases it means that……………..

If the work done to transfer a charge of one coulomb from point M in a wire to point N in the same wire = 6.5 Joules,The potential difference between M. N =

The current intensity flowing through a certain resistance is doubled when……………..

The opposite graph represent the relation between potential difference and the current intensity in three wires having same length and different diameter at constant temperature which of the following is true

If the resistance of a wire is R, if another wire of the same material and equals the first in length, but its diameter equal two thirds of the first wire, its resistance will be…………….

If the resistivity of conductor 0.5 ohm.m. Then the product of it and its conductivity =

A wire of uniform cross section area when it is stretched  to double its length, the resistance is………..

A wire of uniform cross section area when it is stretched  to double its length its resistivity is

if the length is doubled and the cross sectional area is doubled also at constant temperature so the resistance becomes………..

The conductivity is………… if the length is doubled and the cross sectional area is doubled.

In the electric circuit shown in the figure, if the reading of the ammeter ( A1 ) was 1.2 ampere then the reading of the ammeter ( A2 ) equal …………………. ampere.

In the circuit shown:

the ammeter and  the voltmeter reading is……………..

in the opposite figure:the reading of the ammeter……………..

The reading of the ammeter is 2A , its reading when key closed ………………

If the potential difference between bc 3V the the potential difference between ad  is…………..

If the reading of the voltameter 4V so the current pass in 6 ohm…………

If two resistances  one of them 1 Ω each are connected in series, the equivalent resistance is…………..

If two resistances  one of them 1 Ω each are connected in parallel, it is…………..

Three resistors each of 9 ohms are used to obtain an equivalent resistance of 6 ohms which of the following figures satisfies this condition