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Unformatted text preview: 1. What is the equivalent resistance of four 10 Ohm resistors connected in parallel with one another?
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battery, the voltage of the battery measured across the terminals drops to 11 Volts. What is the internal resistance of the car batte ? M \ I
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100 V. The total power consumed by the two resistors is 100 Watts. What is the value of
the resistance of either of the two identical resistors? 13'” m {I} t H (M,
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Three resistors (20 Ohm, 10 Ohm and 5 Ohm) are connected in series across a 15 Volt battery. What is
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dissipates an average power of 60 W. The circuit has a fuse F that burns out when the current in the circuit equals or exceeds 9 A. From the list below, what is the largest number of light bulbs that be used
without burning out the fuse? 120 V 9
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.50w {L ’r d_ . .25W 0 5. Two resistors, R] and R2, are connected in parallel across a battery. The total power consumed by the
two resistors is P. Subsequently a third resistor, R3, is hooked in parallel with the ﬁrst two across the
same battery. Which of the following best describes the result of this action: a. The total power consumed by the three resistors is less than P b. The current in R1 and R2 goes down, but is made up for by the current in R3 so that the total
power consumed remains equal to P c. e total power consumed rises, but the current in R1 and R2 remains constant. d. All the current of from the battery is used up by R; and R2 so there is no current in R and the power remains constant at P 1. A parallel plate capacitor with air between its plates Stores 360 uC of charge when it is
connected to a 9.00 V battery. How much charge can this capacitor hold if it is filled with a
dielectric of dielectric constant K: 2.80 and connected to a 12.0 V battery? 35,”;‘9— (i) : l a : 9,09 l:
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(a? 7!: (JV: ObiﬁF)C’er\/): faith/1C. 1‘ When a resistor is connected to :1 l5 ,0 V battery, it draws power at the rate of 0.640 W. What
is the resistance of a resistor whose length is twice as long? L
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This note was uploaded on 06/18/2010 for the course PHYSICS 112 taught by Professor Any during the Spring '10 term at Ohio State.
 Spring '10
 Any
 Physics

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