Each of teh conductors will experience a force
Each of the conductors can move
The forces on the conductors will be equal
There are concentric lines of force around each conductor
The two conductors will repel each other
Correct answer is E
No explanation has been provided for this answer.
0.2Ω
0.4Ω
1.0Ω
3.0Ω
9.0Ω
Correct answer is C
Assume the internal resistor = R
Current with 2 Ohm Resistor = 0.80A
Voltage = (R + 2) x 0.80 = V ; That is 0.8R + 1.6 = V ———————[[1]
Current with 3 Ohm Resistor = 0.40 A
Voltage = (R+3) x 0.40 = V ; That is 0.4R + 1.2 = V ————————[[2]
Subtracting 1 from 2 gives
--> (0.8 - 0.4) R
( 1.6 - 1.2 )
( V - V )
Therefore
0.4R + 0.4 = 0
R = 0.4 /0.4 = 1 Ohms
Local action is normally prevented from taking place in a simple electric cell by
introducing an oxidising agent into the acid
not drawing current continuously for long periods
amalgamating the surface of the zinc plate
using a porous pot to isolate the zinc plate from the acid
using dilute sulphuric acid
Correct answer is C
No explanation has been provided for this answer.
11000
2750
460
232
10
Correct answer is B
Ep/Es = np/ns
240/120 = 5500/ns
=> ns = 2750
an equal amount of positive charge
less amount of negative charge
no charge
a positive charge
an equal amount of negative charge
Correct answer is E
No explanation has been provided for this answer.