1
AP EAPCET 2022 - 4th July Morning Shift
+1
-0

The maximum number of TV signals, that can be transmitted along a co-axial cable is

A
100
B
125
C
140
D
90
2
AP EAPCET 2021 - 20th August Morning Shift
+1
-0

The electric and the magnetic fields associated with an electromagnetic wave propagating along the $$z$$-axis, can be represented by

A
$$\left[\mathrm{E}=E_0 \hat{\mathrm{i}}, \mathrm{B}=B_0 \hat{\mathrm{j}}\right]$$
B
$$\left[\mathrm{E}=E_0 \hat{\mathrm{k}}, \mathrm{B}=B_0 \hat{\mathrm{i}}\right]$$
C
$$\left[\mathrm{E}=E_0 \hat{\mathrm{j}}, \mathrm{B}=B_0 \hat{\mathrm{i}}\right]$$
D
$$\left[\mathrm{E}=E_0 \hat{\mathrm{j}}, \mathrm{B}=B_0 \hat{\mathrm{k}}\right]$$
3
AP EAPCET 2021 - 19th August Evening Shift
+1
-0

The magnetic field of a plane electromagnetic wave is given by $$B=(400 \propto \mathrm{T})\sin \left[\left(4.0 \times 10^{15} \mathrm{~s}^{-1}\right)\left(t-\frac{x}{c}\right)\right]$$. Average energy density corresponding to the electric field is

A
$$8 \times 10^{-3} \mathrm{Jm}^{-3}$$
B
$$31.8 \times 10^{-3} \mathrm{Jm}^{-3}$$
C
$$80 \times 10^{-3} \mathrm{Jm}^{-3}$$
D
$$3.18 \times 10^{-3} \mathrm{Jm}^{-3}$$
4
AP EAPCET 2021 - 19th August Evening Shift
+1
-0

In an amplitude modulated signal, the maximum amplitude is $$15 \mathrm{~V}$$ and minimum amplitude is $$5 \mathrm{~V}$$. The amplitude of modulating wave will be

A
5 V
B
10 V
C
20 V
D
30 V
EXAM MAP
Medical
NEET