1
GATE EE 2007
+2
-0.6
A $$3$$ $$V$$ $$dc$$ supply with an internal resistance of $$2\,\,\Omega$$ supplies a passive non-linear resistance characterized by the relation $${V_{NL}} = {\rm I}_{NL}^2.$$ The power dissipated in the non-linear resistance is
A
$$1.0$$ $$W$$
B
$$1.5$$ $$W$$
C
$$2.5$$ $$W$$
D
$$3.0$$ $$W$$
2
GATE EE 2006
+2
-0.6
An energy meter connected to an immersion heater (resistive) operating on an $$AC$$ $$230V,$$ $$50$$ $$Hz,$$ $$AC$$ single phase source reads $$2.3$$ units ($$kWh$$) in $$1$$ hour. The heater is removed from the supply and now connected to a $$4000$$ $$V$$ peak to peak square wave source of $$150$$ $$Hz.$$ The power in $$kW$$ dessipated by the heater will be
A
$$3.478$$
B
$$1.739$$
C
$$1.540$$
D
$$0.870$$
3
GATE EE 2005
+2
-0.6
Two wattmeter's, which are connected to measure the total power on a three-phase system supplying a balanced load, read $$10.5$$ $$kW$$ and $$–2.5$$ $$kW$$ respectively. The total power and the power factor respectively are
A
$$13.0$$ $$kW,$$ $$0.334$$
B
$$13.0$$ $$kW,$$ $$0.684$$
C
$$8.0$$ $$kW,$$ $$0.52$$
D
$$8.0$$ $$kW,$$ $$0.334$$
4
GATE EE 2004
+2
-0.6
A single-phase load is connected between $$R$$ and $$Y$$ terminals of a $$415$$ $$V,$$ symmetrical, $$3$$-phase, $$4$$-wire system with phase sequence $$RYB$$. A wattmeter is connected in the system as shown in figure. The power factor of the load is $$0.8$$ lagging. The wattmeter will read A
$$-795$$ $$W$$
B
$$-597$$ $$W$$
C
$$+597$$ $$W$$
D
$$+795$$ $$W$$
GATE EE Subjects
Electric Circuits
Electromagnetic Fields
Signals and Systems
Electrical Machines
Engineering Mathematics
General Aptitude
Power System Analysis
Electrical and Electronics Measurement
Analog Electronics
Control Systems
Power Electronics
Digital Electronics
EXAM MAP
Joint Entrance Examination