In Fig. 27-62. a voltmeter of resistance R v = 300 Ω and an ammeter of resistance R A = 3.00 Ω are being used to measure a resistance R in a circuit that also contains a resistance R 0 = 100 Ω and an ideal battery of emf ℰ = 12.0 V. Resistance R is given by R = Vli. where V is the voltmeter reading and i is the current in resistance R. However, the ammeter reading is not i but rather i ', which is i plus the current through the voltmeter. Thus, the ratio of the two meter readings is not R but only an apparent resistance R ’ = V / i’ . If R = 85.0 Ω, what are (a) the ammeter reading, (b) the voltmeter reading, and (c) R’ ? (d) If R v is increased, does the difference between R’ and R increase, decrease, or remain the same? Figure 27-62 Problem 56.
In Fig. 27-62. a voltmeter of resistance R v = 300 Ω and an ammeter of resistance R A = 3.00 Ω are being used to measure a resistance R in a circuit that also contains a resistance R 0 = 100 Ω and an ideal battery of emf ℰ = 12.0 V. Resistance R is given by R = Vli. where V is the voltmeter reading and i is the current in resistance R. However, the ammeter reading is not i but rather i ', which is i plus the current through the voltmeter. Thus, the ratio of the two meter readings is not R but only an apparent resistance R ’ = V / i’ . If R = 85.0 Ω, what are (a) the ammeter reading, (b) the voltmeter reading, and (c) R’ ? (d) If R v is increased, does the difference between R’ and R increase, decrease, or remain the same? Figure 27-62 Problem 56.
In Fig. 27-62. a voltmeter of resistance Rv = 300 Ω and an ammeter of resistance RA = 3.00 Ω are being used to measure a resistance R in a circuit that also contains a resistance R0 = 100 Ω and an ideal battery of emf ℰ = 12.0 V. Resistance R is given by R = Vli. where V is the voltmeter reading and i is the current in resistance R. However, the ammeter reading is not i but rather i', which is i plus the current through the voltmeter. Thus, the ratio of the two meter readings is not R but only an apparent resistance R’ = V/i’. If R = 85.0 Ω, what are (a) the ammeter reading, (b) the voltmeter reading, and (c) R’? (d) If Rv is increased, does the difference between R’ and R increase, decrease, or remain the same?
A shot putter releases a shot at 13 m/s at an angle of 42 degrees to the horizontal and from a height of 1.83 m above the ground. (Note: For each question draw a diagram to show the vector/s. Show all the step and provide units in the answers. Provide answer to 2 decimal places unless stated otherwise.) Calculate and answer all parts. Only use equations PROVIDED:
If a person jumps upwards with a vertical velocity of 5 m/s, What is their velocity 0.5 second into the jump?
A solid sphere 22 cm in radius carries 17 μC, distributed uniformly
throughout its volume.
Part A
Find the electric field strength 12 cm from the sphere's center.
Express your answer using two significant figures.
E₁ =
ΜΕ ΑΣΦ
ха
Хь
b
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Part B
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|X|
X.10"
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Find the electric field strength 22 cm from the sphere's center.
Express your answer using two significant figures.
ΜΕ ΑΣΦ
E2 =
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Part C
?
MN/C
Find the electric field strength 44 cm from the sphere's center.
Express your answer using two significant figures.
ΕΠΙ ΑΣΦ
E3 =
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MN/C
MN/C
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