Which statement best describes resistance? Resistance is
2 answers:
Answer:
How well a material conducts an electrical charge and is measured in ohms.
Explanation:
Resistance is the property of a conductor which opposes the flow of electric current. Its SI unit is ohms and represented by . According to Ohm's law voltage is directly proportional to the current flowing through the circuit.
It depends directly on the length of the conductor and inversely on its area of cross section. It measure how well a material conducts an electrical charge. Hence, the correct option is (b).
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Answer:
the total force vector, on test charge is points from origin to point C( 1, 1 )
Explanation:
Given the data in the question, as illustrated in the image below;
from the Image, OA = 1, OB = AC = 1
so using Pythagoras theorem
a² = b² + c²
a = √( b² + c² )
so
OC = √( OB² + AC² )
we substitute
OC = √( OA² + AC² )
OC = √( 1² + 1² )
OC = √( 1 + 1 )
OC = √2
Coordinate of C( 1, 1 )
Hence, the total force vector, on test charge is points from origin to point C( 1, 1 )
