Amplitude Modulation

JEE Main Physics · Communication Systems · 10 questions, latest first

• The amplitude of 15 sin (1000 π t) is modulated by 10 sin (4 π t) signal. The amplitude modulated signal contains frequencies of…202312 April, Shift 1 · Q34
• A message signal of frequency 3 kHz is used to modulate a carrier signal of frequency 1.5 MHz. The bandwidth of the amplitude…202310 April, Shift 2 · Q42
• A carrier wave of amplitude 15 V is modulated by a sinusoidal base band signal of amplitude 3 V. The ratio of maximum amplitude…202310 April, Shift 1 · Q42
• For an amplitude modulated wave the minimum amplitude is 3 V, while the modulation index is 60 %. The maximum amplitude of the…20236 April, Shift 2 · Q41
• In an amplitude modulation, a modulating signal having amplitude of X V is superimposed with a carrier signal of amplitude Y V in…20231 February, Shift 2 · Q20
• The amplitude of 15 sin (1000 π t) is modulated by 10 sin (4 π t) signal. The amplitude modulated signal contains frequency (ies)…202331 January, Shift 1 · Q3
• A sinusoidal carrier voltage is amplitude modulated. The resultant amplitude modulated wave has maximum and minimum amplitude of…202330 January, Shift 1 · Q20
• The modulation index for an A.M. wave having maximum and minimum peak-to-peak voltages of 14 mV and 6 mV respectively is-202329 January, Shift 2 · Q20
• A message signal of frequency 5 kHz is used to modulate a carrier signal of frequency 2 MHz. The bandwidth for amplitude…202325 January, Shift 1 · Q20
• A modulating signal is a square wave, as shown in the figure. If the carrier wave is given as c(t)=2 sin (8 π t) volts, the…202324 January, Shift 1 · Q10