Q 6 please
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Q 6 please
Transcribed Image Text:Q1: An isolated point charge produces an electric field with magnitude E at a point 1 m away. At a point √2 m from the
point charge, the magnitude of the electric field is:
A) E
B) 4E
C) E/2
D) 2E
E) E/4
02: Charge 2Q is distributed uniformly throughout a spherical insulating shell. The net flux (in N.m²/C) through the outer
surface of the shell is:
A) 40/€o
B) 20/E
C) Q/4€0
D) Q/2€o
E) Q/ko
93: A rod of length = 2 m is uniformly charged and has a total charge of 60 nC. The magnitude of the electric field at a
point which lies along the axis of the rod and is 4 m from the center of the rod (in N/C) is:
A) 18
B) 54
C) 27
Za 10
D) 9
E) 36
04: Find the magnitude of the electric field (in KN/C) a distance r = 2 m from a line of infinite length and constant linear
charge density λ = 5 μC/m.
A) 45
B) 27
C) 54
D) 18
E) 36
Q5: What is the change in potential energy (in µJ) of a particle of charge 5 μC when it is move between two points whose
potential difference is 150 V?
A) 500
B) 1000
C) 1500
D) 750
E) 250
Q6: What is the value of the electric potential (in V) at which the value of the electric field associated with electric potential
V(x) = x² - 4x is zero.
C) - 8
D) - 2
E) - 10
Q7: The plates of a parallel-plate capacitor of capacitance 5 pF are 16 mm apart. The area of each plate (in cm²) is:
A) 45.2
B) 22.6
C) 33.9
D) 11.3
E) 90.4
A) - 4
B)-16
For Q8 & Q9 use the shown Figure.
Two cylindrical resistors, R1 and R₂, are made of the same material. Resistor R₂ has twice the
length of R: but half the radius of R₁. Given that the value of R₁ = 82 and the current I1 = 16 A.
08: The value of the resistance R₂ (in 2) is:
V
B) 40
A) 8
C) 16
09; The current (In A) passes through the R₂ resistor is:
A) 4
B) 2
C) 3
D) 64
D) 5
E) 32
E) 1
ALC
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