An electric current can have no current when the switch is OPEN
Answer: 2
Explanation:
Each shell can contain only a fixed number of electrons: The first shell can hold up to two electrons, the second shell can hold up to eight (2 + 6) electrons, the third shell can hold up to 18 (2 + 6 + 10) and so on. The general formula is that the nth shell can in principle hold up to 2(n2) electrons.
Answers:
a)
b)
c)
Explanation:
A unit vector is a vector whose magnitude (length) is equal to 1. This kind of vector is identified as and the way to calculate is as follows:
Where:
is the vector
is the magnitude of the vector
Having this information clarified, let's begin with the answers:
a) Force Vector
Magnitude of :
<u />
<u>Unit vector:</u>
b) Displacement Vector
Magnitude of :
<u />
<u>Unit vector:</u>
c) Velocity Vector
Magnitude of :
<u />
<u>Unit vector:</u>
Answer:
The winding density of the solenoid, n = 104 turns/m
Explanation:
Given that,
Length of the solenoid, l = 0.7 m
Radius of the circular cross section, r = 5 cm = 0.05 m
Energy stored in the solenoid,
Current, I = 0.4 A
To find,
The winding density of the solenoid.
Solution,
The expression for the energy stored in the solenoid is given by :
Where
L is the self inductance of the solenoid
n is the winding density of the solenoid
n = 104 turns/m
So, the winding density of the solenoid is 104 turns/m
Answer:
the outcome is that both of them will have same effect