How to do this please
1 answer:
Answer:
1) see the diagram below
2) (b) the length of the wire being tested
Explanation:
1) An <em>ammeter</em> is connected in series with the circuit branch in which you want to measure current. "Conventional current" enters the positive terminal of the ammeter. (You can think of it as a voltmeter across a small resistor. The polarity of the voltage matches the polarity of the current.)
A <em>voltmeter</em> is connected in parallel with the circuit element of interest. Here, you want to measure the voltage across the wire, so the voltmeter is placed in parallel with the wire. The positive terminal of the voltmeter is connected to the end of the circuit element that has the higher (more positive) potential.
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2) The wording of the problem tells you which variable is independent:
"A <em>varies with</em> B" means the independent variable is B
Here, the independent variable is the length of the wire.
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The woman weighs 100N now.
Explanation:
Given:
F is given as 400N
one full additional earth radius formed
To Find:
Weight of the woman=?
Solution:
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where
is the gravitational force
is the radius square
So when radius is doubled, the force becomes one fourth of the original.
Therefore