Answer:
2.7ohms
Explanation:
Given parameters:
Voltage of the battery = 12V
Current = 4.5A
Unknown:
Resistance of the resistor = ?
Solution:
From Ohm's law, we know that;
V = IR
V is the voltage
I is the current
R is the resistance
So;
R = =
= 2.7ohms
Answer:
The magnitude and direction of the magnetic field is 93.63 T in negative x direction.
Explanation:
Given;
speed of the electron in positive y direction, v = 2.0 x 10⁵ m/s
magnetic force on the electron, F in negative z direction = 3.0 x 10⁻¹² N
The magnitude of the magnetic force is given by;
F = Qv x B
B = F / Qv
The direction of the magnetic field is is as;
Based on the direction of magnetic force (negative z direction), the charge will be directed into negative y-direction because electron is negatively charged. Thus, the direction of the magnetic field will be in the negative x-direction
Therefore, the magnitude and direction of the magnetic field is 93.63 T in negative x direction.
Answer:
Explanation:
Given:
Length of the parallel wires (L) = 3.7 m
Current in the first wire (I₁) = 3.6 A
Current in the second wire (I₂) = 1.6 A
Separation between the parallel wires (d) = 3.1 cm = 0.031 m [1 cm = 0.01 m]
Both the wires will attract each with forces equal in magnitude and opposite in direction.
Now, the magnitude of the force acting between the two wires is given as:
Where,
Plug in the given values and solve for |F|. This gives,
Therefore, the magnitude of the force between the two wires is