1
GATE EE 1994
MCQ (Single Correct Answer)
+1
-0.3
A $$0$$-$$10$$ $$mA$$ $$PMMC$$ ammeter reads $$4$$ $$mA$$ in a circuit. Its bottom control spring snaps suddenly. The meter will now read nearly
A
$$10$$ $$mA$$
B
$$8$$ $$mA$$
C
$$2$$ $$mA$$
D
zero
2
GATE EE 1994
MCQ (Single Correct Answer)
+2
-0.6
A d.c. potentiometer is designed to measure up to about $$2$$ $$V$$ with a slide wire of $$800$$ mm. A standard cell of emf $$1.18V$$ obtains balance at $$600$$ mm. A test cell is seen to obtain balance at $$680$$ mm. The emf of the test cell is
A
$$1.00V$$
B
$$1.34V$$
C
$$1.50V$$
D
$$1.70V$$
3
GATE EE 1994
MCQ (Single Correct Answer)
+1
-0.3
A lissajous pattern, as shown in figure below, is observed on the screen of a $$CRO$$ when voltages of frequencies $${f_x}$$ and $${f_y}$$ are applied to the $$x$$ and $$y$$ plates respectively. $${f_x}:{f_y}$$ is then equal to GATE EE 1994 Electrical and Electronics Measurement - Cathode Ray Oscilloscope Question 17 English
A
$$3:2$$
B
$$1:2$$
C
$$2:3$$
D
$$2:1$$
4
GATE EE 1994
MCQ (Single Correct Answer)
+1
-0.3
Skew is used in induction motors in order to reduce torque due to
A
time harmonics
B
space harmonics
C
slot harmonics
D
reverse rotating fields
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