A galvanometer with a coil resistance of 80 ? deflects full-scale for a current of 2.0 mA. What series resistance is required to convert it to a voltmeter reading full scale for 200 V
A) 100 m? B) 13 M? C) 250 k? D) 0.80 m? E) 100 k?
E
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The _____ of an object is the angular distance from one edge to the other
A) angular volume B) angular momentum C) angular velocity D) angular diameter
When a change occurs in the magnetic field in a closed loop of wire
A) a voltage is induced in the wire. B) a current is created in the loop of wire. C) electromagnetic induction occurs. D) all of the above E) none of the above
Stars to the upper right of the Hertzsprung-Russell diagram tend to be relatively
A) hot and blue. B) long lasting. C) huge. D) yellow and of average size.
Viscosity: Motor oil, with a viscosity of 0.25 N ? s/m2, is flowing through a tube that has a radius of 5.0 mm and is 25 cm long. The drop in pressure is 300 kPa. What is the volume of oil flowing through the tube per second?
A. 0.00038 m3/s B. 0.025 m3/s C. 0.0012 m3/s D. 4.7 m3/s E. 7.5 m3/s