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Q1. Magnetic moment for solenoid and corresponding bar magnet is

Q2. In the case of an inductor

Q3. In a pure capacitive circuit if the frequency of ac source is doubled, then its capacitive reactance will be

Q4. In an alternating current circuit consisting of elements in series, the current increases on increasing the frequency of supply. Which of the following elements are likely to constitute the circuit?

Q5. In which of the following circuits the maximum power dissipation is observed?

Q6. In a series LCR circuit the voltage across an inductor, capacitor and resistor are 20 V, 20 V and 40 V respectively. The phase difference between the applied voltage and the
current in the circuit is

Q7. At resonant frequency the current amplitude in series LCR circuit is

Q8. Quality factor and power factor both have the dimensions of

Q9. For an ideal-step-down transformer, the quantity which is constant for both the coils is

Q10. A transformer works on the principle of

1). Which of the following does not belong to the group of Doberiener’s triad?

2). The attributes of corresponding elements are the periodic functions of the ________

3). An element’s physical and chemical properties are a periodic function of its mass

4). Mendeleev’s periodic table’s horizontal rows were called __________

5). The greatest number in the period correlates to the highest number in the period.

6) Which of the following elements belongs to the periodic table’s second transition series?

7). What are the transition elements’ characteristics?

8). What may a litmus paper be used to test?

9). What is the first element in the periodic table’s fourth transition series?

10). The ions O2- , F– , Na+ , and Mg2+ are referred to as __________

1) If A and B are two matrices of the order 3 × m and 3 × n, respectively, and m = n, then the order of matrix (5A – 2B) is

2) For any two matrices A and B, we have

3) If A and B are symmetric matrices of the same order, then (AB′ –BA′) is a

4) If A is a skew-symmetric matrix, then A2 is a

5) sin(tan-1 x), where |x| < 1, is equal to:

6)The value of sin (2 tan–1 (.75)) is equal to

7) If α ≤ 2 sin–1x + cos–1x ≤ β, then

8)0∫2 x2 dx =

9) If ∫ 2x dx = f(x) + C, then f(x) is

10) ∫cot2x dx equals to