Answer:
Magnitude = B = (μ₀*N*I /2R)
Direction= The direction of the magnetic field will be find out by the right hand rule. We will curve the finger of right hand in the direction of the current and our thumb will show the direction of the magnetic field. which will be out of the screen. That is + z direction.
Answer:
Power, P = 722.96 watts
Explanation:
It is given that,
Voltage, V = 120 V
Length of nichrome wire, l = 8.9 m
Diameter of wire, d = 0.86 mm
Radius of wire, r = 0.43 mm = 0.00043 m
Resistivity of wire, 
We need to find the power drawn by this heater. Power is given by :

And, 


P = 722.96 watts
So, the power drawn by this heater element is 722.96 watts. Hence, this is the required solution.
Answer:
You would use a bar graph
M= Height of image/height of the object
If, M>1, then height of image>height of object.
And therefore, image is larger than the object.
Answer:
Inside the strong metal box, there is a microwave generator called a magnetron. When you start cooking, the magnetron takes electricity from the power outlet and converts it into high-powered, 12cm (4.7 inch) radio waves. Thus the microwaves pass their energy onto the molecules in the food, rapidly heating it up.May 3, 2018