Complete :
1- The electric current is formed due to the flow of ……… through a ……… of conductor.
(electric charges - wire)
2- The flow of electricity f mom conductor to another depends on the ……. Between them
(Potential difference)
3- The electric current flows from the conductor of …….. Potential to another of ………… potential
(high - low)
4- The voltmeter is connected in ………. Between the two poles of the electric source to measure it's ……….
( Series - electromotive force (e.m.f) )
5- The voltmeter is connected in ……… between the two points in the electric circuit and the ………. Of an electric source
(potential difference - electromotive force)
6- The …………. Is the current intensity produced from the passage of charge of ……. In one second
(ampere - coulomb)
7-
(Volt)
8- The ammeter is connected in ………… with the electric source to measure the ……….. that flows through the circuit.
(series - electric current - intensity)
9- The electric charge is measured by unit called ……………
(coulomb)
10- Similar electric cells are connected in ……… to obtain high e.m.f and connected in ………. To obtain an e.m.f equal to one of them.
(series - parallel)
11- When two cells of the sum e.m.f are connected together in series, the total e.m.f value will ……….
(Be doubled)
2-
Chooses:
1- The measuring unit of the potential difference is the …….
(a-volt b-ampere c-ohm d- coulomb)
a-volt
2- The measuring unit of electricity is the ………
(a-joule b-coulomb c-volt d-ampere)
b-coulomb
3- The coulomb = ………….
4- The ampere = ………..
5- if an electric charge of 6 coulombs flows through section of wire in three seconds , the current intensity will be ………. Amperes
(a-2 b-6 c-9 d-18)
a-2
6- The ……… is used to measure the current intensity.
(a- ohmmeter b-ammeter c-voltmeter d-voltammeter)
b-ammeter
7- Find the e.m.f that is produced from the following :
(a- 1.5 b- 3V c- 4.5 d- 6V)
b- 3V
(a- 2V b- 8V c- 6V d- 4V)
c- 6V
8- To obtain high e.m.f the dry cells are connected ………
(a-in parallel b-in series c-to a rheostat d-horizontally)
الثلاثاء أغسطس 05, 2008 9:17 am