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1. Biomolecules and Cell Biology

Practice questions for Biology - Class 11

1 What is the unit of electrical power?
2 Ohm’s law states that voltage is directly proportional to:
3 Which of the following is a conducting material?
4 In a parallel circuit, the voltage across each component is:
5 Which law states that the sum of currents entering a junction equals the sum of currents leaving?
6 What is the formula for electrical power?
7 The total resistance in a series circuit is:
8 What type of circuit consists of components arranged such that the current can only follow one path?
9 The resistance of a conductor depends on all of the following except:
10 What is the SI unit of electrical charge?
11 Which of the following materials is used as an insulator?
12 In a delta connection, the phase voltage is:
13 In a series circuit, the current is:
14 What is the relationship between voltage, current, and resistance?
15 A material that has high electrical conductivity is:
16 The total resistance in a parallel circuit is:
17 What is the formula for the total resistance in a parallel circuit?
18 Which of the following is a non-linear element in a circuit?
19 In a star connection, the line voltage is:
20 A bilateral circuit is one where:
21 The power dissipated in a resistor is given by:
22 The process of converting from delta to star connection involves:
23 What is the unit of electrical energy?
24 Which of the following statements is correct about Kirchhoff's Voltage Law (KVL)?
25 What does the symbol ∼ in an AC circuit represent?
26 In a circuit, which of the following components is typically used to limit the current flow?
27 The energy stored in a capacitor is given by:
28 Which of the following is a passive component?
29 The electrical impedance of a circuit depends on all except:
30 What is the formula for calculating the total current in a parallel circuit?
31 In a circuit, the unit of inductance is:
32 The characteristic of a unilateral circuit is that:
33 In a DC circuit, the power is considered active if it:
34 The reactance in an AC circuit is caused by:
35 Which of the following is a unilateral circuit?
36 The unit of voltage is:
37 In a power system, transformers are used to:
38 The total power in a parallel circuit is:
39 Which of the following components does not obey Ohm’s law?
40 What is the primary function of a fuse in a circuit?
41 When voltage and current are in phase, the power factor is:
42 In a star connection, what happens to the line current?
43 What is the effect of increasing the length of a conductor on its resistance?
44 What happens to the power in a resistor if the voltage is doubled?
45 What is the unit of electrical power?
46 Ohm’s law states that voltage is directly proportional to:
47 Which of the following is a conducting material?
48 In a parallel circuit, the voltage across each component is:
49 Which law states that the sum of currents entering a junction equals the sum of currents leaving?
50 What is the formula for electrical power?
51 The total resistance in a series circuit is:
52 What type of circuit consists of components arranged such that the current can only follow one path?
53 The resistance of a conductor depends on all of the following except:
54 What is the SI unit of electrical charge?
55 Which of the following materials is used as an insulator?
56 In a delta connection, the phase voltage is:
57 In a series circuit, the current is:
58 What is the relationship between voltage, current, and resistance?
59 A material that has high electrical conductivity is:
60 The total resistance in a parallel circuit is:
61 What is the formula for the total resistance in a parallel circuit?
62 Which of the following is a non-linear element in a circuit?
63 In a star connection, the line voltage is:
64 A bilateral circuit is one where:
65 The power dissipated in a resistor is given by:
66 The process of converting from delta to star connection involves:
67 What is the unit of electrical energy?
68 Which of the following statements is correct about Kirchhoff's Voltage Law (KVL)?
69 What does the symbol ∼ in an AC circuit represent?
70 In a circuit, which of the following components is typically used to limit the current flow?
71 The energy stored in a capacitor is given by:
72 Which of the following is a passive component?
73 The electrical impedance of a circuit depends on all except:
74 What is the formula for calculating the total current in a parallel circuit?
75 In a circuit, the unit of inductance is:
76 The characteristic of a unilateral circuit is that:
77 The power in a DC circuit is considered active if it:
78 The reactance in an AC circuit is caused by:
79 Which of the following is a unilateral circuit?
80 The unit of voltage is:
81 In a power system, transformers are used to:
82 The total power in a parallel circuit is:
83 Which of the following components does not obey Ohm’s law?
84 What is the primary function of a fuse in a circuit?
85 When voltage and current are in phase, the power factor is:
86 In a star connection, what happens to the line current?
0 of 86 answered