A galvanometer has a coil with a resistance of 24.0 ?, and a current of 180 ?A causes it to deflect full scale. If this galvanometer is to be used to construct an ammeter that can read up to 10.0 A, what shunt resistor is required?
A) 123 µ?
B) 234 µ?
C) 342 µ?
D) 432 µ?
E) 423 µ?
Answer: D
You might also like to view...
This figure shows a "slice of the universe" from the Sloan Digital Sky Survey. What is the Sloan Great Wall (indicated by the arrow)?
A) a huge collection of galaxies extending a billion light-years in length B) a giant wall of hot gas extending a billion light-years in length C) our cosmological horizon, the point beyond which we cannot see D) a hypothesized structure built of the particles responsible for creating dark energy in the universe
3.00 moles of an ideal gas at a pressure of 250 kPa are held in a container of volume of 25.0 L. The ideal gas constant is R = 8.314 J/mol ? K = 0.0821 L ? atm/mol ? K, and 1 atm = 1.01 × 105 Pa. The temperature of this gas is closest to
A) 240°C. B) -180°C. C) 480°C. D) -1.0°C. E) -22°C.
What is the importance of 1.4 solar masses in stellar evolution?
What will be an ideal response?
What is the speed of a 6-kg ball with a momentum of 72 kg?m/s?
A) 3 m/s B) 4 m/s C) 12 m/s D) 48 m/s E) none of the above