Capacitive method is more ______ than induction method.

Capacitive method is more ______ than induction method.

• A. Superficial
• B. Deep
• C. Uniform
• D. Variable

Answer: (A)

Capacitive diathermy tends to heat tissues near the surface more than the deeper structures. This method uses an electric field between two plates, and energy concentrates in tissues with higher impedance that lie closest to the electrodes—typically the skin and subcutaneous fat. Because of this setup, superficial tissues absorb more energy and warm up preferentially. Inductive diathermy, by contrast, uses a coil to create a magnetic field. The energy is induced more readily in deeper tissues with higher water content, such as muscles, so heating tends to be deeper rather than just at the surface. So capacitive heating is more superficial than inductive heating.

Capacitive diathermy tends to heat tissues near the surface more than the deeper structures. This method uses an electric field between two plates, and energy concentrates in tissues with higher impedance that lie closest to the electrodes—typically the skin and subcutaneous fat. Because of this setup, superficial tissues absorb more energy and warm up preferentially.

Inductive diathermy, by contrast, uses a coil to create a magnetic field. The energy is induced more readily in deeper tissues with higher water content, such as muscles, so heating tends to be deeper rather than just at the surface.

So capacitive heating is more superficial than inductive heating.