Chsaa Rules Test 2025-2026 most recent version Comprehensive 100 questions and verified answers accurate solutions Already graded A+ Get it 100% correct A 1.5V battery connects to a 10 ohm resistor. The power dissipated by the resistor is -
CORRECT ANSWER: P=V^2/R
P=1.5^2/10
P=0.23 W
a 9.0 Vbattery connects to a wire resistor. The wire resistor is tungsten (resistor 5.6x10^-8) 0.5m long has a radius of 1.2x10^-5m. What is the current through the
resistor - CORRECT ANSWER: 0.15 A
A battery connects to a resistor with resistance R and the resulting current is measured.The resistor is removed and a new resistor with a resistance of 2R is added. As a result
- CORRECT ANSWER: the voltage will double
the current will double the charge speed will double none of the above will options are correct!!
a battery connects to a resistor. The rate of energy dissipated by the resistor is 1.44 W
The rate of energy supplied by the battery is - CORRECT ANSWER: equal to 1.44 W
A battery with a potential difference of V connects to a resistor, and the resulting current is measured. You remove the battery, and a new battery with a potential difference of
2Vis put in its place. As a result - CORRECT ANSWER: the current will double
A battery with an emf of 12V connects in parallel to a 50 ohm and 25 ohm resistor. The current through the battery is 0.70 A. What is the internal resistance of the battery -
CORRECT ANSWER: 50 x25 / 50+25 +16.6 1 / 3
E=I(Req +r) 12=0.7(16.6 +r) 12=11.66 +0.7r 0.333=0.7r 0.54 ohm
A charged particle moving to the right enters a uniform magnetic field directed into the page. The charged particle experiences a magnetic force. Which of the following is a true statement (disregard any gravitational effects) - CORRECT ANSWER: The speed of the of the particle will remain the same
A device plugged into a wall outlet experiences an alternating current. The RMS current
value is 2A. The peak current is - CORRECT ANSWER: 2x sqrt2
=2.8
A light bulb connects to a battery. A second, identical light bulb connects in parallel to the first light bulb. The connecting wires have negligible resistance. When the switch is
closed, the original light bulb will - CORRECT ANSWER: experience no change in
brightness
A negatively charged particle moves through various electric fields. Which of the following correctly indicates whether the negatively charged particle gained or lost
energy in each of the following examples - CORRECT ANSWER: gained energy
lost energy gained energy
A particle with a charge of +2uC is at the position marked by x. Which statement concerning the particle's energy is most accurate? - CORRECT ANSWER: The particle will have a positive energy term
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A particle with a mass of 0.01 kg and a net charge of -0.05 C accelerates from rest through a uniform electric field. If the strength of the field is 2000 V/C, what is the speed
of the particle after traveling for 0.5 m? - CORRECT ANSWER: Fd=1/2mv^2
qEd=1/2mv^2 sqrt(2qEd/m)=v
sqrt(2 (0.05) (2000) (.5)/0.01
100m/s
A particle with a net charge of -2uC is halfway between two particles with a net charge of +4 uC and +6uC respectively. The two positively charged particles are 10 cm apart.What is the magnitude of the net force on the negative particle - CORRECT ANSWER: F=kqq/r^2 9x10^9 (4x10^-6)(4x10^-6)/.1^2 14.4
A particular alternating voltage supply completes one full voltage cycle at a frequency -
CORRECT ANSWER: equal to 10Hz
A positive particle begins at a position near a negative plate and ends at a position near
a positively charged plate. Which statement is most accurate - CORRECT ANSWER:
work is done on the particle so that the particle will end with more energy
A positively charged 2mC particle moving in the upward direction at a speed of 20m/s enters a 3.0T field directed into the page. The particle path curves with a radius of 6cm.
What is the mass of the particle - CORRECT ANSWER: qvB= mv^2/r
m=qbr/v m= (2x10^-3) (3T) 0.06)/20 1.8 x10^-5
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