1
NEET 2016 Phase 2
MCQ (Single Correct Answer)
+4
-1
Which of the following combinations should be selected for better tuning of an L-C-R circuit used for combination ?
A
R = 20 $$\Omega $$, L = 1.5 H, C = 35 $$\mu $$F
B
R = 25 $$\Omega $$, L = 2.5 H, C = 45 $$\mu $$F
C
R = 15 $$\Omega $$, L = 3.5 H, C = 30 $$\mu $$F
D
R = 25 $$\Omega $$, L = 1.5 H, C = 45 $$\mu $$F
2
NEET 2016 Phase 2
MCQ (Single Correct Answer)
+4
-1
A uniform magnetic field is restricted within a region of rafius r. The magnetic field changes with time at a rate $${{d\overrightarrow B } \over {dt}}$$. Loop 1 of radius R > r encloses the region r and loop 2 of radius R is outside the region of magnetic field as shown in the figure. Then the e.m.f. generated is

NEET 2016 Phase 2 Physics - Electromagnetic Induction Question 25 English
A
zero in loop 1 and zero in loop 2
B
$$ - {{d\overrightarrow B } \over {dt}}\pi {r^2}$$ in loop 1 and $$ - {{d\overrightarrow B } \over {dt}}\pi {r^2}$$ in loop 2
C
$$ - {{d\overrightarrow B } \over {dt}}\pi {R^2}$$ in loop 1 and zero in loop 2
D
$$ - {{d\overrightarrow B } \over {dt}}\pi {r^2}$$ in loop 1 and zero in loop 2
3
NEET 2016 Phase 2
MCQ (Single Correct Answer)
+4
-1
The potential differences across the resistance, capacitance and inductance are 80 V, 40 V and 100 V respectively in an L-C-R circuit. The power factor of this circuit is
A
0.4
B
0.5
C
0.8
D
1.0
4
NEET 2016 Phase 2
MCQ (Single Correct Answer)
+4
-1
A 100 $$\Omega $$ resistance and a capacitor of 100 $$\Omega $$ reactance are connected in series across a 220 V source. When the capacitor is 50% charged, the peak value of the displacement current is
A
2.2 A
B
11 A
C
4.4 A
D
11$$\sqrt 2 A$$
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