A sphere is charged with electrons to −9 × 10−6 C. The value given is the total charge of all the electrons present in the sphere. To calculate the number of electrons in the sphere, we divide the the total charge with the charge of one electron.
N = 9 × 10−6 C / 1.6 × 10−19 C
N = 5.6 x 10^13
Answer:
The magnitude of electric field is 
in downward.
Explanation:
Given that,
Force 
Charge q= -2.00 μC
We know that,
Charge is negative, then the electric field in the opposite direction of the exerted force.
We need to calculate the magnitude of electric field
Using formula of electric force
Negative sign shows the opposite direction of electric force.
Hence, The magnitude of electric field is in downward.
Answer:
The cable used is a straight through cable.
Explanation:
The cable used here is a straight through cable, that is why it fails to establish the connection.
Cross-over cables are used to communicate over legacy switch. It is used to connect computing devices directly.
In a cross over cable, signal gets transmit from one end of the device to the other.
Answer:
both charges will have different potential energies that will depend upon the charge magnitude.
Explanation:
It is given that both the charges are on the same equipotential line which means the potential V at which the two charges are is same.
Now the potential energy of a charge at potential V is given by
q×V where q is the charge value
Thus Higher the charge value for a given value of potential , higher will be the potential energy
Thus the larger charge will have higher potential energy and not the same.
