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Physics 10 Chapter 14 - Current and Electricity - 21
1.
If resistances R1, R2, R3 ................................Rn are connected in series, then what will be the formula for equivalent resistance of the combination?
a) 1 / Re = 1 / R1 + 1 / R2 + 1 / R3 + ……..+ 1 / Rn
b) Re = R1 - R2 - R3 - ……..- Rn
c) Re = R1 + R2 + R3 + ……..+ Rn
d) 1 / Re = 1 / R1 - 1 / R2 - 1 / R3 - ……..- 1 / Rn
2.
If two resistors of 6 kΩ and 4 kΩ are connected in series across a 10 V battery, then find the equivalent resistance of the series combination?
a) 10 kΩ
b) 4.2 kΩ
c) 2.4 kΩ
d) 2 kΩ
3.
If two resistors of 6 kΩ and 4 kΩ are connected in series across a 10 V battery, then find the current flowing through each of the resistance?
a) 10 m A
b) 10 A
c) 1 A
d) 1 m A
4.
If two resistors of 6 kΩ and 4 kΩ are connected in series across a 10 V battery, then find the potential difference across the resistor of 4 kΩ?
a) 6 V
b) 12 V
c) 4 V
d) -2 V
5.
In parallel combination, how are resistors connected?
a) Left side of each resistor is connected with positive terminal
b) Right side of each resistor is left unconnected
c) Resistors are connected end to end
d) Left side of each resistor is left unconnected
6.
What is always same throughout the resistors, in parallel combination?
a) Resistance
b) Current
c) Power
d) Voltage
7.
Which of the following is CORRECT about parallel combination?
a) Left side of each resistor is connected with positive terminal
b) Resistors are connected end to end
c) Left side of each resistor is left unconnected
d) Right side of each resistor is left unconnected
8.
Which of the following is CORRECT about parallel combination?
a) Resistance always remain same through the resistors
b) Current remains same throughout the resistors
c) Voltage remains same throughout the resistors
d) Power remains same throughout the resistors
9.
Which of the following is CORRECT about parallel combination?
a) Resistance always remain same through the resistors
b) Voltage varies according to the resistance
c) Current varies according to the resistance
d) Power remains same throughout the resistors
10.
If two resistors of 6 kΩ and 4 kΩ are connected in series across a 10 V battery, then find the potential difference across the resistor of 6 kΩ?
a) 6 V
b) 4 V
c) 2 V
d) 8 V
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