In this article you will get the clue that from where and how the questions are being framed from the chapter Electricity.The experts of jagranjosh.com have full confidence that you will not miss any of the questions in the board exam as well as in competitive exams from this chapter if you will keep the following terms / question in your mind while studying
Go through the some questions given here as example and get an idea that how questions can be framed
ii. More than either of the individual resistances?
a. Total resistance of the circuit
b. Current through the circuit
c. Potential difference across the electric bulb
d. Potential difference across the resistance wire
I. Electric charge
II. Potential difference
III. Electric current
VI. Electric energy
Q1 .When batteries are places in a flashlight, the positive terminal of one is connected to the negative terminal of the next. Why?
a. So electricity can flow from the battery to the flashlight to a complete circuit.
b. So the current is slowed as it enters the next battery
c. So the voltage is increased as it enters the next battery
d. So electromagnetic interference is reduced
Q2. A parallel plate capacitor contains a positively charged plate on the left, and a negatively charged plate on the right. An electron in between the plates is moved to the right. Which statement is true?
a. The potential energy of the electron is increasing and it is moving to a region having a lower potential.
b. The potential energy of the electron is increasing and it is moving to a region having a higher potential.
c. The potential energy of the electron is decreasing and it is moving to a region having a lower potential.
d. The potential energy of the electron is decreasing and it is moving to a region having a higher potential
Q3. Which of the following property of a proton can change while it moves freely in a magnetic field? (there may be more than one correct answer)
Q4. Two bulbs marked 200 watt-250 volts and 100 watt-250 volts are joined in series to 250 volts supply. Power consumed in circuit is
a. 33 watt
b. 67 watt
c. 100 watt
d. 300 watt.
Q5. The resistance of a wire of iron is 10 ohm and temperature coefficient of resistivity is 5 x 10-3/ºC. At 20 ºC it carries 30 milli ampere of current. Keeping constant potential difference between its ends, the temperature of the wire is raised to 120 ºC. The current in milli amperes that flows in the wire is:
Q6. The electric field 2.8 cm from a small object points towards the object points towards the object with strength of 180,000N/C. what is the object’s charge
Q7. When a current 'I' flows through a resistance 'R' for time 't' the electrical energy spent is given by
a. I R t
b. I2 R t
c. I R2 t
d. I 2 R/t
Q8. The value of the following is given by 100 (kilo ampere ) x ( micro ampere ) 100 milli ampere * 10 ampere
a. 0.001 A
b. 0.1 A
c. 1 A
Q9.Which of the following statement is not true, regarding the electrical set-up for the verification of Ohm’s law:
a. The voltmeter is connected in parallel with the known resistance
b. The ammeter is connected in series circuit
c. The rheostat can only increase the resistance in electric circuit
d. The single key is used to switch on/off the electric circuit
Q10. Two electric bulbs have resistances in the ratio 1:2. If they are joined in series, the energy consumed in them are in the ratio.
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