If you connect the circuit as shown in Fig. 19.1 in the Laboratory Guide with either resistor in place, but one fuse is removed from the circuit, this represents a circuit with a burned-out fuse. What is the voltage across the resistor? Explain your answer. V = ___________
Fill in the blank(s) with correct word
The voltage across the resistor is zero. Because no current is flowing through the
resistor and one conducting path to the voltage source is open, the voltage across the
resistor will be zero.
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An aluminum fin is attached at both ends in a compact heat exchanger as shown. For the situation shown, determine the temperature distribution and the heat transfer through the fin.
What will be an ideal response?
A uniform solid sphere of mass 1.5 kg and diameter 30.0 cm starts from rest and rolls without slipping down a 35° incline that is 7.0 m long. (a) Calculate the linear speed of the center of the sphere when it reaches the bottom of the incline
(b) Determine the angular speed of the sphere about its center at the bottom of the incline. (c) Through what angle (in radians) does this sphere turn as it rolls down the incline? (d) Does the linear speed in (a) depend on the radius or mass of the sphere? Does the angular speed in (b) depend on the radius or mass of the sphere?
A high-voltage powerline operates at 500,000 V rms and carries an rms current of 500 A. If the resistance of the cable is 0.050 ?/km, what is the resistive power loss in 200 km of the powerline?
a. 250 kW b. 500 kW c. 1 megawatt d. 2.5 megawatts e. 250 megawatts
What is the hardness of diamond on the Mohs scale?
a. 1 b. 4 c. 7 d. 10