Question Text
Question 1 :
What is the equivalent resistance when $10^6\Omega$ , $1\Omega$ and $10^3\Omega$ are connected in parallel?
Question 3 :
Which uses more energy, a 250 W TV set in 1 hr, or a 1200 W toaster in 10 minutes?
Question 4 :
What is the equivalent resistance when $10^6\Omega$ and $1\Omega$ are connected in parallel?
Question 5 :
An electric iron consumes energy at a rate of 840 W when heating is at the maximum rate and the voltage is 220 V. What is the resistance when heating is at maximum rate?
Question 7 :
How much power is used in 2$\Omega$ resistor when a 6 V battery is connected in series with 1$\Omega$ and 2$\Omega$ resistors?
Question 8 :
State true or false: When connected to the same source the current will flow more easily through a thick wire than thin wire.
Question 9 :
In series combination of resistors, the current is _____in every part of
the circuit.
Question 10 :
An electric lamp of 100 ohm, a toaster of 50 ohm and a water filter of resistance 500 ohm are connected in parallel to a 220 V source. What is the resistance of an electric iron connected to the same source that takes as much current as all the three appliances ?