Table of Contents
- 1 What happens to radius when diameter is halved?
- 2 Do you half the diameter to get the radius?
- 3 When the length of a wire is halved its resistance will be?
- 4 How do you get radius from diameter?
- 5 When the potential difference is halved the current gets doubled?
- 6 What happens to resistance when length is halved?
What happens to radius when diameter is halved?
If you think about it, radius is already half of the diameter so your area is already divided by 2, so if you cut the radius is half again, your area will be divided by 4.
Do you half the diameter to get the radius?
Just remember to divide the diameter by two to get the radius. If you were asked to find the radius instead of the diameter, you would simply divide 7 feet by 2 because the radius is one-half the measure of the diameter. The radius of the circle is 3.5 feet. You can also use the circumference and radius equation.
What is half a radius called?
semicircle
In mathematics (and more specifically geometry), a semicircle is a one-dimensional locus of points that forms half of a circle. The full arc of a semicircle always measures 180° (equivalently, π radians, or a half-turn).
How will resistance change if diameter is halved?
MCQ : If the diameter of a resistance wire is halved then its resistance becomes. The area of the cross-section will get reduced by four times. Thus, the resistance will increase by four times.
When the length of a wire is halved its resistance will be?
The answer :If the length of the wire is halved, it’s resistance also gets halved. Reason: Resistance is directly proportional to length of the conductor . Hope it was helpful.
How do you get radius from diameter?
Just remember to divide the diameter by two to get the radius. If you were asked to find the radius instead of the diameter, you would simply divide 7 feet by 2 because the radius is one-half the measure of the diameter. The radius of the circle is 3.5 feet.
What is radius in terms of diameter?
The radius of a circle is a line segment that starts from the center of a circle and ends at the circumference of the circle. It is half the length of the diameter of a circle, i.e., Radius = Diameter/2.
What is the resistance when length is halved?
When the potential difference is halved the current gets doubled?
On doubling of the potential difference across the ends of a conductor e, the current flowing through it also gets doubled, and when the potential difference is halved, the current also gets halved.
What happens to resistance when length is halved?
From the equation, we understand that resistance is directly proportional to the length of the conductor and inversely proportional to the crossectional area of the conductor. Doubling the length doubles the resistance.